1
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Huang H, Sun W, Sun L, Zhang L, Wang Y, Zhang Y, Gu S, You Z, Zhu M. Internal catalysis significantly promotes the bond exchange of covalent adaptable polyurethane networks. Proc Natl Acad Sci U S A 2024; 121:e2404726121. [PMID: 39145926 DOI: 10.1073/pnas.2404726121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Accepted: 06/22/2024] [Indexed: 08/16/2024] Open
Abstract
Self-healing covalent adaptable networks (CANs) are not only of fundamental interest but also of practical importance for achieving carbon neutrality and sustainable development. However, there is a trade-off between the mobility and cross-linking structure of CANs, making it challenging to develop CANs with excellent mechanical properties and high self-healing efficiency. Here, we report the utilization of a highly dynamic four-arm cross-linking unit with an internally catalyzed oxime-urethane group to obtain CAN-based ionogel with both high self-healing efficiency (>92.1%) at room temperature and superior mechanical properties (tensile strength 4.55 MPa and toughness 13.49 MJ m-3). This work demonstrates the significant potential of utilizing the synergistic electronic, spatial, and topological effects as a design strategy for developing high-performance materials.
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Affiliation(s)
- Hongfei Huang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Institute of Functional Materials, College of Materials Science and Engineering, Donghua University, Research Base of Textile Materials for Flexible Electronics and Biomedical Applications (China Textile Engineering Society), Shanghai Key Laboratory of Lightweight Composite, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, Shanghai 201620, People's Republic of China
| | - Wei Sun
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Institute of Functional Materials, College of Materials Science and Engineering, Donghua University, Research Base of Textile Materials for Flexible Electronics and Biomedical Applications (China Textile Engineering Society), Shanghai Key Laboratory of Lightweight Composite, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, Shanghai 201620, People's Republic of China
| | - Lijie Sun
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Institute of Functional Materials, College of Materials Science and Engineering, Donghua University, Research Base of Textile Materials for Flexible Electronics and Biomedical Applications (China Textile Engineering Society), Shanghai Key Laboratory of Lightweight Composite, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, Shanghai 201620, People's Republic of China
| | - Luzhi Zhang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Institute of Functional Materials, College of Materials Science and Engineering, Donghua University, Research Base of Textile Materials for Flexible Electronics and Biomedical Applications (China Textile Engineering Society), Shanghai Key Laboratory of Lightweight Composite, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, Shanghai 201620, People's Republic of China
| | - Yang Wang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Institute of Functional Materials, College of Materials Science and Engineering, Donghua University, Research Base of Textile Materials for Flexible Electronics and Biomedical Applications (China Textile Engineering Society), Shanghai Key Laboratory of Lightweight Composite, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, Shanghai 201620, People's Republic of China
| | - Youwei Zhang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Institute of Functional Materials, College of Materials Science and Engineering, Donghua University, Research Base of Textile Materials for Flexible Electronics and Biomedical Applications (China Textile Engineering Society), Shanghai Key Laboratory of Lightweight Composite, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, Shanghai 201620, People's Republic of China
| | - Shijia Gu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Institute of Functional Materials, College of Materials Science and Engineering, Donghua University, Research Base of Textile Materials for Flexible Electronics and Biomedical Applications (China Textile Engineering Society), Shanghai Key Laboratory of Lightweight Composite, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, Shanghai 201620, People's Republic of China
| | - Zhengwei You
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Institute of Functional Materials, College of Materials Science and Engineering, Donghua University, Research Base of Textile Materials for Flexible Electronics and Biomedical Applications (China Textile Engineering Society), Shanghai Key Laboratory of Lightweight Composite, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, Shanghai 201620, People's Republic of China
| | - Meifang Zhu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Institute of Functional Materials, College of Materials Science and Engineering, Donghua University, Research Base of Textile Materials for Flexible Electronics and Biomedical Applications (China Textile Engineering Society), Shanghai Key Laboratory of Lightweight Composite, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, Shanghai 201620, People's Republic of China
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2
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Rahman SS, Mahmud MB, Omranpour H, Salehi A, Monfared AR, Park CB. Highly Tough Yet Stiff, Transparent, and Recyclable PMMA Nanocomposites Incorporating TPU Nanofibril Networks with High Thermal Stability and Strong Interfacial Adhesion. ACS APPLIED MATERIALS & INTERFACES 2024; 16:42687-42703. [PMID: 39082691 DOI: 10.1021/acsami.4c08654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/16/2024]
Abstract
In this paper, we develop high aspect ratio nanofibrils from a polycaprolactone-based thermoplastic polyurethane (TPU) and evaluate their performance as a toughening agent. Poly(methyl methacrylate) (PMMA) was chosen as the matrix material because of its inherent brittleness and low resistance to sudden shocks and impact. We show that the addition of as little as 3 wt % of TPU nanofibrils with an average diameter of ∼98 nm and very high aspect ratio can significantly improve both the tensile toughness (∼212%) and impact strength (∼40%) of the chosen matrix (i.e., PMMA) without compromising its original strength, stiffness, and transparency. We compare the performance of TPU nanofibrils with TPU spherical particles─the form TPU typically manifests into when melt-mixed with an immiscible polymer. Our findings highlight that the structure of TPU plays a crucial role in determining the critical concentration of TPU needed for the brittle-ductile transition of the matrix. We also provide new and valuable insights into the unique interfacial interaction (i.e., formation of fibrillar bridges) observed between the PMMA matrix and TPU. We also show that the inclusion of 3 wt % of TPU nanofibrils can notably enhance resistance to creep deformation, even at temperatures close to the glass transition temperature of the matrix. Finally, we evaluate recyclability and demonstrate that the composite containing 3 wt % of TPU nanofibrils can be mechanically recycled without losing any properties. The proposed TPU nanofibrils can withstand repeated reprocessing at temperatures up to 190 °C due to their very high melting point and thermal stability. This presents the opportunity for them to be utilized not just with amorphous PMMA, but also with a range of other materials that can be processed at or below this temperature to remarkably improve their toughness without sacrificing strength and stiffness.
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Affiliation(s)
- Saadman Sakib Rahman
- Microcellular Plastics Manufacturing Laboratory, Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, Ontario, Canada M5S 3G8
| | - Mayesha Binte Mahmud
- Microcellular Plastics Manufacturing Laboratory, Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, Ontario, Canada M5S 3G8
| | - Hosseinali Omranpour
- Microcellular Plastics Manufacturing Laboratory, Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, Ontario, Canada M5S 3G8
| | - Amirmehdi Salehi
- Microcellular Plastics Manufacturing Laboratory, Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, Ontario, Canada M5S 3G8
| | - Ali Reza Monfared
- Microcellular Plastics Manufacturing Laboratory, Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, Ontario, Canada M5S 3G8
| | - Chul B Park
- Microcellular Plastics Manufacturing Laboratory, Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, Ontario, Canada M5S 3G8
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3
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Kristensen SK, Ahrens A, Donslund BS, Skrydstrup T. Perspective on the Development of Monomer Recovery Technologies from Plastics Designed to Last. ACS ORGANIC & INORGANIC AU 2024; 4:373-386. [PMID: 39132016 PMCID: PMC11311459 DOI: 10.1021/acsorginorgau.4c00009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 03/18/2024] [Accepted: 03/19/2024] [Indexed: 08/13/2024]
Abstract
In order to prevent the current unsustainable waste handling of the enormous volumes of end-of-use organic polymer material sent to landfilling or incineration, extensive research efforts have been devoted toward the development of appropriate solutions for the recycling of commercial thermoset polymers. The inability of such cross-linked polymers to be remelted once cured implies that mechanical recycling processes used for thermoplastic materials do not translate to the recycling of thermoset polymers. Moreover, the structural diversity within the materials from the use of different monomers as well as the use of such polymers for the fabrication of fiber-reinforced polymer composites make recycling of these materials highly challenging. In this Perspective, depolymerization strategies for thermoset polymers are discussed with an emphasis on recent advancements within our group on recovering polymer building blocks from polyurethane (PU) and epoxy-based materials. While these two represent the largest thermoset polymer groups with respect to the production volumes, the recycling landscapes for these classes of materials are vastly different. For PU, increased collaboration between academia and industry has resulted in major advancements within solvolysis, acidolysis, aminolysis, and split-phase glycolysis for polyol recovery, where several processes are being evaluated for further scaling studies. For epoxy-based materials, the molecular skeleton has no obvious target for chemical scission. Nevertheless, we have recently demonstrated the possibility of the disassembly of the epoxy polymer in fiber-reinforced composites for bisphenol A (BPA) recovery through catalytic C-O bond cleavage. Furthermore, a base promoted cleavage developed by us and others shows tremendous potential for the recovery of BPA from epoxy polymers. Further efforts are still required for evaluating the suitability of such monomer recovery strategies for epoxy materials at an industrial scale. Nonetheless, recent advancements as illustrated with the presented chemistry suggest that the future of thermoset polymer recycling could include processes that emphasize monomer recovery in an energy efficient manner for closed-loop recycling.
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Affiliation(s)
- Steffan K. Kristensen
- Interdisciplinary
Nanoscience Center (iNANO), Aarhus University, Gustav Wieds Vej 14, 8000 Aarhus C, Denmark
| | - Alexander Ahrens
- Interdisciplinary
Nanoscience Center (iNANO), Aarhus University, Gustav Wieds Vej 14, 8000 Aarhus C, Denmark
| | - Bjarke S. Donslund
- Carbon
Dioxide Activation Center (CADIAC), Novo Nordisk Foundation CO2 Research Center, Interdisciplinary Nanoscience Center (iNANO)
and Department of Chemistry, Aarhus University, Gustav Wieds Vej 14, 8000 Aarhus C, Denmark
| | - Troels Skrydstrup
- Carbon
Dioxide Activation Center (CADIAC), Novo Nordisk Foundation CO2 Research Center, Interdisciplinary Nanoscience Center (iNANO)
and Department of Chemistry, Aarhus University, Gustav Wieds Vej 14, 8000 Aarhus C, Denmark
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4
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Kortenbrede L, Heider J, Heckroth H, Leimenstoll M, Steuer H, Sütterlin J, Weise F, Hokamp T. Development and Characterization of Biodegradable Polyurethane-Urea-Based Hydrogels for the Prevention of Postoperative Peritoneal Adhesions. ACS OMEGA 2024; 9:34008-34020. [PMID: 39130550 PMCID: PMC11307292 DOI: 10.1021/acsomega.4c04577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/14/2024] [Revised: 07/03/2024] [Accepted: 07/11/2024] [Indexed: 08/13/2024]
Abstract
Postoperative peritoneal adhesions occur after more than 60% of abdominal surgeries and can cause severe long-term side effects, such as chronic pain, infertility, and intestinal obstructions. However, currently available products for adhesion prophylaxis often lack efficiency or are too heavy to handle. Hydrogels are promising materials to be used for adhesion prevention as they show good mechanical stability and biocompatibility. Herein, we present a novel two-component sprayable, biodegradable, fast-curing, and shape-adaptive polyurethane urea (PUU) hydrogel system and the establishment of a full characterization approach to investigate its suitability for adhesion prophylaxis according to predefined chemical, mechanical, and biological criteria. We demonstrate that this PUU hydrogel system exhibits a fast-curing behavior, is resilient toward mechanical forces, is biocompatible, and reveals a degradation behavior within a desired time frame to reliably avoid the formation of adhesions. In addition, the PUU hydrogel system functions as an effective barrier for invading cells in vitro. Overall, we propose a guideline for the development and in vitro characterization of synthetic hydrogels for application in minimally invasive adhesion prophylaxis.
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Affiliation(s)
- Lana Kortenbrede
- Covestro
Deutschland AG, Coatings and Adhesives, Leverkusen 51365, Germany
| | - Johanna Heider
- NMI
Natural and Medical Sciences Institute at the University of Tübingen, Reutlingen 72770, Germany
| | - Heike Heckroth
- Covestro
Deutschland AG, Coatings and Adhesives, Leverkusen 51365, Germany
| | - Marc Leimenstoll
- Macromolecular
Chemistry, Cologne University of Applied
Science, Campus Leverkusen,
Campusplatz 1, Leverkusen 51379, Germany
| | - Heiko Steuer
- NMI
Technology Transfer GmbH, Reutlingen 72770, Germany
| | - Jan Sütterlin
- Covestro
Deutschland AG, Coatings and Adhesives, Leverkusen 51365, Germany
| | - Frank Weise
- NMI
Natural and Medical Sciences Institute at the University of Tübingen, Reutlingen 72770, Germany
| | - Tobias Hokamp
- NMI
Natural and Medical Sciences Institute at the University of Tübingen, Reutlingen 72770, Germany
- NMI
Technology Transfer GmbH, Reutlingen 72770, Germany
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5
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Akae Y, Theato P. Polyurethane-Type Poly[3]rotaxanes Synthesized from Cyclodextrin-Based [3]Rotaxane Diol and Diisocyanates. Macromol Rapid Commun 2024:e2400441. [PMID: 39042093 DOI: 10.1002/marc.202400441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2024] [Revised: 07/09/2024] [Indexed: 07/24/2024]
Abstract
Synthesis of polyurethane-type poly[3]rotaxanes is achieved by polyaddition between a cyclodextrin (CD)-based [3]rotaxane diol and various diisocyanate species, which provide a more defined structure compared to conventional polyrotaxane syntheses. In this study, hydroxyl groups on CDs of [3]rotaxane diol are initially acetylated, and deprotected after the polyaddition to introduce polyurethane backbone structure into polyrotaxane framework. Despite a relatively complicated chemical structure, [3]rotaxane diol monomer is successfully synthesized in a high yield (overall 67%) without any taxing purification process, which is beneficial for practical applications. The polymerization itself proceeds well under a standard polyaddition reaction condition to afford corresponding polyurethanes around 80% yield with Mn > 30 kDa. The poly[3]rotaxanes show different aggregation behavior or optical properties, whether or not acetyl groups are present, and are analyzed by XRD, SEM, and fluorescence measurements.
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Affiliation(s)
- Yosuke Akae
- Institute for Chemical Technology and Polymer Chemistry (ITCP), Karlsruhe Institute of Technology (KIT), 76131, Karlsruhe, Germany
- Research Fellow of Japan Society for the Promotion of Science, Tokyo, 102-0083, Japan
- Faculty of Textile Science and Technology, Shinshu University, Nagano, 386-8567, Japan
| | - Patrick Theato
- Institute for Chemical Technology and Polymer Chemistry (ITCP), Karlsruhe Institute of Technology (KIT), 76131, Karlsruhe, Germany
- Soft Matter Synthesis Laboratory - Institute for Biological Interfaces III (IBG-3), Karlsruhe Institute of Technology (KIT), 76344, Eggenstein-Leopoldshafen, Germany
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6
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Shi J, Zheng T, Wang Z, Wang P, Yang H, Guo J, Wang D, Guo B, Xu J. Filler effects inspired high performance polyurethane elastomer design: segment arrangement control. MATERIALS HORIZONS 2024. [PMID: 39011906 DOI: 10.1039/d4mh00648h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/17/2024]
Abstract
Elastomers with high strength and toughness are in great demand. Previous research on elastomers focused mainly on the design of new chemical structures, but their complicated synthesis process and expensive monomers have restricted the practical application of these materials. Inspired by general filler effects, a strategy is proposed to remarkably enhance the mechanical properties of thermoplastic polyurethane (TPU) elastomers by designing the arrangement of hard/soft segments using traditional chemical compositions. By utilizing the synergetic effect of weak hard segments, normal TPU elastomers are upgraded into advanced elastomers. Combining experiments and simulations, it is demonstrated that a suitable sequence length can achieve considerably enhanced strength and toughness by maximizing the relative surface area of hard domains. Mixing the obtained elastomer with an ionic liquid can result in a durable ionogel sensor with balanced mechanical strength and ionic conductivity. This easy-to-implement strategy offers a new dimension for the development of high-performance elastomers.
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Affiliation(s)
- Jiaxin Shi
- Advanced Materials Laboratory of Ministry of Education (MOE), Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China.
| | - Tianze Zheng
- Advanced Materials Laboratory of Ministry of Education (MOE), Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China.
| | - Zhiqi Wang
- Advanced Materials Laboratory of Ministry of Education (MOE), Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China.
| | - Pujin Wang
- Advanced Materials Laboratory of Ministry of Education (MOE), Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China.
| | - Hongkun Yang
- State Key Laboratory of Organic-Inorganic Composites & Beijing Key Laboratory of Advanced Functional Polymer Composites, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Jinjing Guo
- Advanced Materials Laboratory of Ministry of Education (MOE), Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China.
| | - Dong Wang
- State Key Laboratory of Organic-Inorganic Composites & Beijing Key Laboratory of Advanced Functional Polymer Composites, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Baohua Guo
- Advanced Materials Laboratory of Ministry of Education (MOE), Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China.
| | - Jun Xu
- Advanced Materials Laboratory of Ministry of Education (MOE), Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China.
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7
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Etz BD, Woodley CM, Shukla MK. Reaction mechanisms for methyl isocyanate (CH 3NCO) gas-phase degradation. JOURNAL OF HAZARDOUS MATERIALS 2024; 473:134628. [PMID: 38795480 DOI: 10.1016/j.jhazmat.2024.134628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Revised: 05/04/2024] [Accepted: 05/14/2024] [Indexed: 05/28/2024]
Abstract
Methyl isocyanate (MIC) is a toxic chemical found in many commercial, industrial, and agricultural processes, and was the primary chemical involved in the Bhopal, India disaster of 1984. The atmospheric environmental chemical reactivity of MIC is relatively unknown with only proposed reaction channels, mainly involving OH-initiated reactions. The gas-phase degradation reaction pathways of MIC and its primary product, formyl isocyanate (FIC), were investigated with quantum mechanical (QM) calculations to assess the fate of the toxic chemical and its primary transformation products. Transition state energy barriers and reaction energetics were evaluated for thermolysis/pyrolysis-like reactions and bimolecular reactions initiated by relevant radicals (•OH and Cl•) to evaluate the potential energy surfaces and identify the primary reaction pathways and products. Thermolysis/pyrolysis of MIC requires high energy to initiate N-CH3 and C-H bond dissociation and is unlikely to dissociate except under extreme conditions. Bimolecular radical addition and H-abstraction reaction pathways are deemed the most kinetically and thermodynamically favorable mechanisms. The primary transformation products of MIC were identified as FIC, methylcarbamic acid, isocyanic acid (isocyanate radical), and carbon dioxide. The results of this work inform the gas-phase reaction channels of MIC and FIC reactivity and identify transformation products under various reaction conditions.
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Affiliation(s)
- Brian D Etz
- Oak Ridge Institute for Science and Education (ORISE), Oak Ridge, TN 37830, USA
| | - Christa M Woodley
- Environmental Laboratory, US Army Engineer Research and Development Center, 3909 Halls Ferry Road, Vicksburg, MS 39180, USA
| | - Manoj K Shukla
- Environmental Laboratory, US Army Engineer Research and Development Center, 3909 Halls Ferry Road, Vicksburg, MS 39180, USA.
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8
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Teng YQ, Ren BH, Liu Y, Gao J, Ren WM, Lu XB. Innovative Approach to Chiral Polyurethanes: Asymmetric Copolymerization with Isocyanates. Angew Chem Int Ed Engl 2024; 63:e202404186. [PMID: 38691059 DOI: 10.1002/anie.202404186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 04/15/2024] [Accepted: 04/29/2024] [Indexed: 05/03/2024]
Abstract
The introduction of nitrogen-containing functional groups to chiral polymer backbones enables the tailoring of physical properties and offers opportunities for further post-polymerization modification. However, the substrate scope of such polymers is extremely limited because monomers having nitrogen-containing groups can change coordination state with respect to the metal centers, thus decreasing the activity and enantioselectivity and even poisoning the catalyst completely. In this paper, we report our attempts to carry out the asymmetric copolymerization of meso-epoxide with highly reactive isocyanates. In particular, we found that biphenol-linked bimetallic Co(III) complexes with multiple chiral centers are very efficient in catalyzing this asymmetric copolymerization reaction, affording optically active polyurethanes with a completely alternating nature and a high enantioselectivity of up to 94 % ee. Crucially, we identified that the steric hindrance at the phenolate ortho position of the ligand strongly influences the catalytic activity and product enantioselectivity. In addition, density functional theory calculations revealed that the highly sterically bulky substituents change the mechanism from bimetallic to monometallic, and result in the unexpected inversion of the chiral induction direction. Moreover, the high stereoregularity of the produced polyurethanes enhances their thermal stability, and they can be selectively decomposed into oxazolidinones. This study offers a versatile methodology for the synthesis of chiral polymers containing nitrogen functionalities.
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Affiliation(s)
- Yong-Qiang Teng
- State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials, Dalian University of Technology, Dalian, 116024, China
| | - Bai-Hao Ren
- State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials, Dalian University of Technology, Dalian, 116024, China
| | - Ye Liu
- State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials, Dalian University of Technology, Dalian, 116024, China
| | - Jie Gao
- State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials, Dalian University of Technology, Dalian, 116024, China
| | - Wei-Min Ren
- State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials, Dalian University of Technology, Dalian, 116024, China
| | - Xiao-Bing Lu
- State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials, Dalian University of Technology, Dalian, 116024, China
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9
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Pu M, Fang C, Zhou X, Wang D, Lin Y, Lei W, Li L. Recent Advances in Environment-Friendly Polyurethanes from Polyols Recovered from the Recycling and Renewable Resources: A Review. Polymers (Basel) 2024; 16:1889. [PMID: 39000744 PMCID: PMC11244063 DOI: 10.3390/polym16131889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2024] [Revised: 06/25/2024] [Accepted: 06/27/2024] [Indexed: 07/17/2024] Open
Abstract
Polyurethane (PU) is among the most universal polymers and has been extensively applied in many fields, such as construction, machinery, furniture, clothing, textile, packaging and biomedicine. Traditionally, as the main starting materials for PU, polyols deeply depend on petroleum stock. From the perspective of recycling and environmental friendliness, advanced PU synthesis, using diversified resources as feedstocks, aims to develop versatile products with excellent properties to achieve the transformation from a fossil fuel-driven energy economy to renewable and sustainable ones. This review focuses on the recent development in the synthesis and modification of PU by extracting value-added monomers for polyols from waste polymers and natural bio-based polymers, such as the recycled waste polymers: polyethylene terephthalate (PET), PU and polycarbonate (PC); the biomaterials: vegetable oil, lignin, cashew nut shell liquid and plant straw; and biomacromolecules: polysaccharides and protein. To design these advanced polyurethane formulations, it is essential to understand the structure-property relationships of PU from recycling polyols. In a word, this bottom-up path provides a material recycling approach to PU design for printing and packaging, as well as biomedical, building and wearable electronics applications.
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Affiliation(s)
- Mengyuan Pu
- School of Mechanical and Precision Instrument Engineering, Xi’an University of Technology, Xi’an 710048, China; (M.P.); (D.W.)
- School of Printing, Packaging Engineering and Digital Media Technology, Xi’an University of Technology, Xi’an 710048, China; (Y.L.); (W.L.)
| | - Changqing Fang
- School of Mechanical and Precision Instrument Engineering, Xi’an University of Technology, Xi’an 710048, China; (M.P.); (D.W.)
- School of Printing, Packaging Engineering and Digital Media Technology, Xi’an University of Technology, Xi’an 710048, China; (Y.L.); (W.L.)
| | - Xing Zhou
- School of Mechanical and Precision Instrument Engineering, Xi’an University of Technology, Xi’an 710048, China; (M.P.); (D.W.)
- School of Printing, Packaging Engineering and Digital Media Technology, Xi’an University of Technology, Xi’an 710048, China; (Y.L.); (W.L.)
| | - Dong Wang
- School of Mechanical and Precision Instrument Engineering, Xi’an University of Technology, Xi’an 710048, China; (M.P.); (D.W.)
- School of Printing, Packaging Engineering and Digital Media Technology, Xi’an University of Technology, Xi’an 710048, China; (Y.L.); (W.L.)
| | - Yangyang Lin
- School of Printing, Packaging Engineering and Digital Media Technology, Xi’an University of Technology, Xi’an 710048, China; (Y.L.); (W.L.)
| | - Wanqing Lei
- School of Printing, Packaging Engineering and Digital Media Technology, Xi’an University of Technology, Xi’an 710048, China; (Y.L.); (W.L.)
| | - Lu Li
- Key Laboratory of Auxiliary Chemistry and Technology for Chemical Industry, Ministry of Education, Shaanxi University of Science and Technology, Xi’an 710021, China;
- Shaanxi Collaborative Innovation Center of Industrial Auxiliary Chemistry and Technology, Shaanxi University of Science and Technology, Xi’an 710021, China
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10
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Jia Y, Guan Q, Chu C, Zhang L, Neisiany RE, Gu S, Sun J, You Z. A fluorine-based strong and healable elastomer with unprecedented puncture resistance for high performance flexible electronics. Sci Bull (Beijing) 2024; 69:1875-1886. [PMID: 38616151 DOI: 10.1016/j.scib.2024.03.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Revised: 02/17/2024] [Accepted: 03/13/2024] [Indexed: 04/16/2024]
Abstract
There is usually a trade-off between high mechanical strength and dynamic self-healing because the mechanisms of these properties are mutually exclusive. Herein, we design and fabricate a fluorinated phenolic polyurethane (FPPU) elastomer based on octafluoro-4,4'-biphenol to overcome this challenge. This fluorine-based motif not only tunes interchain interactions through π-π stacking between aromatic rings and free-volume among polymer chains but also improves the reversibility of phenol-carbamate bonds via electron-withdrawing effect of fluorine atoms. The developed FPPU elastomer shows the highest recorded puncture energy (648.0 mJ), high tensile strength (27.0 MPa), as well as excellent self-healing efficiency (92.3%), along with low surface energy (50.9 MJ m-2), notch-insensitivity, and reprocessability compared with non-fluorinated counterpart biphenolic polyurethane (BPPU) elastomer. Taking advantage of the above-mentioned merits of FPPU elastomer, we prepare an anti-fouling triboelectric nanogenerator (TENG) with a self-healable, and reprocessable elastic substrate. Benefiting from stronger electron affinity of fluorine atoms than hydrogen atoms, this electronic device exhibits ultrahigh peak open-circuit voltage of 302.3 V compared to the TENG fabricated from BPPU elastomer. Furthermore, a healable and stretchable conductive composite is prepared. This research provides a distinct and general pathway toward constructing high-performance elastomers and will enable a series of new applications.
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Affiliation(s)
- Yujie Jia
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Institute of Functional Materials, College of Materials Science and Engineering, Research Base of Textile Materials for Flexible Electronics and Biomedical Applications (China Textile Engineering Society), Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, Donghua University, Shanghai 201620, China
| | - Qingbao Guan
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Institute of Functional Materials, College of Materials Science and Engineering, Research Base of Textile Materials for Flexible Electronics and Biomedical Applications (China Textile Engineering Society), Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, Donghua University, Shanghai 201620, China
| | - Chengzhen Chu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Institute of Functional Materials, College of Materials Science and Engineering, Research Base of Textile Materials for Flexible Electronics and Biomedical Applications (China Textile Engineering Society), Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, Donghua University, Shanghai 201620, China
| | - Luzhi Zhang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Institute of Functional Materials, College of Materials Science and Engineering, Research Base of Textile Materials for Flexible Electronics and Biomedical Applications (China Textile Engineering Society), Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, Donghua University, Shanghai 201620, China
| | - Rasoul Esmaeely Neisiany
- Biotechnology Centre, Silesian University of Technology, Gliwice 44-100, Poland; Department of Polymer Engineering, Hakim Sabzevari University, Sabzevar 9617976487, Iran
| | - Shijia Gu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Institute of Functional Materials, College of Materials Science and Engineering, Research Base of Textile Materials for Flexible Electronics and Biomedical Applications (China Textile Engineering Society), Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, Donghua University, Shanghai 201620, China
| | - Junfen Sun
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Institute of Functional Materials, College of Materials Science and Engineering, Research Base of Textile Materials for Flexible Electronics and Biomedical Applications (China Textile Engineering Society), Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, Donghua University, Shanghai 201620, China.
| | - Zhengwei You
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Institute of Functional Materials, College of Materials Science and Engineering, Research Base of Textile Materials for Flexible Electronics and Biomedical Applications (China Textile Engineering Society), Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, Donghua University, Shanghai 201620, China.
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11
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Zhang X, Zan X, Yin J, Wang J. Non-Isocyanate Urethane Acrylate Derived from Isophorone Diamine: Synthesis, Characterization and Its Application in 3D Printing. Molecules 2024; 29:2639. [PMID: 38893514 PMCID: PMC11173429 DOI: 10.3390/molecules29112639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2024] [Revised: 05/29/2024] [Accepted: 06/01/2024] [Indexed: 06/21/2024] Open
Abstract
In this paper, urethane-based acrylates (UA) were prepared via an environmentally friendly non-isocyanate route. Isophorone diamine (IPDA) reacted with ethylene carbonate (EC), producing carbamate containing amine and hydroxyl groups, which further reacted with neopentyl glycol diacrylate (NPGDA) by aza Michael addition, forming UA. The structures of the obtained intermediates and UA were characterized by 1H NMR and electrospray ionization high-resolution mass spectrometry (ESI-HRMS). The photopolymerization kinetics of UA were investigated by infrared spectroscopy. The composite with obtained UA can be UV cured quickly to form a transparent film with a tensile strength of 21 MPa and elongation at break of 16%. After UV curing, the mono-functional urethane acrylate was copolymerized into the cross-linked network in the form of side chains. The hydroxyl and carbamate bonds on the side chains have high mobility, which make them easy to form stronger dynamic hydrogen bonds during the tensile process, giving the material a higher tensile strength and elongation at break. Therefore, the hydrogen bonding model of a cross-linked network is proposed. The composite with UA can be 3D printed into models.
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Affiliation(s)
- Xinqi Zhang
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China; (X.Z.); (X.Z.); (J.Y.)
| | - Xinxin Zan
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China; (X.Z.); (X.Z.); (J.Y.)
| | - Jiangdi Yin
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China; (X.Z.); (X.Z.); (J.Y.)
| | - Jiaxi Wang
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China; (X.Z.); (X.Z.); (J.Y.)
- Hebei Provincial Key Lab of Green Chemical Technology and High Efficient Energy Saving, Hebei University of Technology, Tianjin 300130, China
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12
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Siragusa F, Crane L, Stiernet P, Habets T, Grignard B, Monbaliu JCM, Detrembleur C. Continuous Flow Synthesis of Functional Isocyanate-Free Poly(oxazolidone)s by Step-Growth Polymerization. ACS Macro Lett 2024; 13:644-650. [PMID: 38717381 DOI: 10.1021/acsmacrolett.4c00203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/22/2024]
Abstract
Flow chemistry presents many advantages over batch processes for the fast and continuous production of polymers under more robust, safer, and easily scalable conditions. Although largely exploited for chain-growth polymerizations, it has rarely been applied to step-growth polymerizations (SGP) due to their inherent limitations. Here, we report the facile and fast preparation of an emerging class of nonisocyanate polyurethanes, i.e., CO2-based poly(oxazolidone)s, by SGP in continuous flow reactors. Importantly, we also demonstrate that functional poly(oxazolidone)s are easily prepared by telescoping a flow module where SGP occurs with reagents able to simultaneously promote two polymer derivatizations in a second module, i.e., dehydration followed by cationic thiol-ene to yield poly(N,S-acetal oxazolidone)s. The functional polymer is produced at a high rate and functionalization degree, without requiring the isolation of any intermediates. This work demonstrates the enormous potential of flow technology for the facile and fast continuous production of functional polymers by SGP.
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Affiliation(s)
- Fabiana Siragusa
- Center for Education and Research on Macromolecules (CERM), CESAM Research Unit, University of Liège, Sart-Tilman B6a, 4000 Liège, Belgium
| | - Lionel Crane
- Center for Education and Research on Macromolecules (CERM), CESAM Research Unit, University of Liège, Sart-Tilman B6a, 4000 Liège, Belgium
- Center for Integrated Technology and Organic Synthesis (CiTOS), MolSys Research Unit, University of Liège, Sart-Tilman B6a, 4000 Liège, Belgium
| | - Pierre Stiernet
- Center for Education and Research on Macromolecules (CERM), CESAM Research Unit, University of Liège, Sart-Tilman B6a, 4000 Liège, Belgium
| | - Thomas Habets
- Center for Education and Research on Macromolecules (CERM), CESAM Research Unit, University of Liège, Sart-Tilman B6a, 4000 Liège, Belgium
| | - Bruno Grignard
- Center for Education and Research on Macromolecules (CERM), CESAM Research Unit, University of Liège, Sart-Tilman B6a, 4000 Liège, Belgium
- FRITCO2T Platform, CESAM Research Unit, University of Liège, Sart-Tilman B6a, 4000 Liège, Belgium
| | - Jean-Christophe M Monbaliu
- Center for Integrated Technology and Organic Synthesis (CiTOS), MolSys Research Unit, University of Liège, Sart-Tilman B6a, 4000 Liège, Belgium
- WEL Research Institute, 1300 Wavre, Belgium
| | - Christophe Detrembleur
- Center for Education and Research on Macromolecules (CERM), CESAM Research Unit, University of Liège, Sart-Tilman B6a, 4000 Liège, Belgium
- WEL Research Institute, 1300 Wavre, Belgium
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13
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Kusano S, Yamada Y, Hagihara S. Benzoxaborole Catalyst Embedded with a Lewis Base: A Highly Active and Selective Catalyst for cis-1,2-diol Modification. J Org Chem 2024; 89:6714-6722. [PMID: 38669291 DOI: 10.1021/acs.joc.3c02845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/28/2024]
Abstract
The regioselective modification of polyols allows rapid access to their derivatives, thereby accelerating the polyol-related biology and drug discovery. We previously reported that benzoxaborole is a potent catalyst for the regioselective modification of polyols containing a cis-1,2-diol structure. In this study, we developed a bifunctional benzoxaborole catalyst embedded with a Lewis base. Benzoxaborole and Lewis base groups were designed to cooperatively activate a substrate (cis-1,2-diol) and reactant (electrophile), respectively, hence lowering the reaction barrier for the cis-1,2-diol moiety. The bifunctional catalyst indeed exhibited a significantly higher catalytic activity and selectivity for cis-1,2-diol modifications rather than a benzoxaborole catalyst without a Lewis base group. Mechanistic analyses, using both experimental and theoretical methods, supported the design of our catalyst. The bifunctional catalyst reported herein would be a new tool for the straightforward synthesis of polyol derivatives.
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Affiliation(s)
- Shuhei Kusano
- RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Yuji Yamada
- Department of Chemistry, Faculty of Science, Fukuoka University, 8-19-1 Nanakuma, Fukuoka 814-0180, Japan
| | - Shinya Hagihara
- RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
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14
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Guerrero-Ruiz F, Otaegi I, Verde-Sesto E, Bonardd S, Maiz J. Revealing Dynamic Behavior in High Dielectric Poly(thiourethane)-Based Vitrimer-like Materials. ACS APPLIED POLYMER MATERIALS 2024; 6:5473-5484. [PMID: 38752014 PMCID: PMC11091852 DOI: 10.1021/acsapm.4c00681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 04/18/2024] [Accepted: 04/22/2024] [Indexed: 05/18/2024]
Abstract
Here, we have explored covalent adaptable networks (CANs) comprising poly(thiourethane)-based systems (PTUs). The PTUs were synthesized through the combination of thiol and isocyanate monomers in stoichiometric proportions, in the presence of dibutyltin dilaurate (DBTDL) as catalyst. Dynamic mechanical analysis (DMA) provided detailed insight into the vitrimeric behavior. Through these investigations, we evaluated the viscoelastic, thermomechanical, and vitrimeric properties. Additionally, broadband dielectric spectroscopy (BDS) revealed the various relaxation processes inherent in such vitrimer-like materials. We methodically examined the evolution of each relaxation in every prepared sample to comprehend the operational mechanisms in these vitrimer-like systems. Our findings underscore that depending on the PTU formulation, the glass transition temperature (Tg) and the topology freezing transition temperature (Tv) can be effectively distinguished and studied. Considering the high dipole moment of the dynamic bonds present in these systems, there is potential for utilizing them as dielectric materials working under the concept of dipolar glass polymers. Furthermore, the reversibility exhibited by their inner chemical structures positions them as promising candidates for active layers in capacitor devices, particularly for energy-related applications, with the ability to be recyclable while maintaining almost invariant both their mechanical and dielectric properties, thus promoting the extension of the lifespan of electronic devices.
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Affiliation(s)
- Federico Guerrero-Ruiz
- Centro
de Física de Materiales (CFM) (CSIC-UPV/EHU)-Materials Physics
Center (MPC), Paseo Manuel de Lardizábal 5, 20018 Donostia-San Sebastián, Spain
| | - Itziar Otaegi
- POLYMAT
and Department of Advanced Polymers and Materials: Physics, Chemistry
and Technology, Faculty of Chemistry, University
of the Basque Country UPV/EHU, Paseo Manuel de Lardizábal 3, 20018 Donostia-San Sebastián, Spain
| | - Ester Verde-Sesto
- Centro
de Física de Materiales (CFM) (CSIC-UPV/EHU)-Materials Physics
Center (MPC), Paseo Manuel de Lardizábal 5, 20018 Donostia-San Sebastián, Spain
- IKERBASQUE-Basque
Foundation for Science, Plaza Euskadi 5, 48009 Bilbao, Spain
| | - Sebastian Bonardd
- Centro
de Física de Materiales (CFM) (CSIC-UPV/EHU)-Materials Physics
Center (MPC), Paseo Manuel de Lardizábal 5, 20018 Donostia-San Sebastián, Spain
| | - Jon Maiz
- Centro
de Física de Materiales (CFM) (CSIC-UPV/EHU)-Materials Physics
Center (MPC), Paseo Manuel de Lardizábal 5, 20018 Donostia-San Sebastián, Spain
- IKERBASQUE-Basque
Foundation for Science, Plaza Euskadi 5, 48009 Bilbao, Spain
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15
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Lin B, Chen W, Lei Y, Ma X, Wang J, Li L. Solvothermal Preparation of Microporous Polyureas for Au(III) Adsorption. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:9001-9011. [PMID: 38627239 DOI: 10.1021/acs.langmuir.4c00305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/01/2024]
Abstract
The enrichment and recovery of gold from wastewater are an alternative method to obtain this noble metal, which benefits reducing hazardous emissions from the conventional ore mining process and reserving natural gold for sustainable development. Inspired by our previous work (Lei et al., Macromol. Rapid Comm. 2022, 2200712), four families of microporous polyureas (mPPUs) with a large surface area (690 m2 g-1) and abundant heteroatom sites have been prepared via the factor-optimized solvothermal protocol. The resultant sample NPU-A starting from 1,5-naphthalene diisocyanate (NDI) and tri(4-aminophenyl) amine (TAPA) exhibits the maximum Au(III) adsorption capacity of 1300 mg g-1 and high selectivity even when the Au(III) concentration is as low as 0.1 mg L-1. This study not only demonstrates the robustness of the high-throughput synthetic strategy but also promotes the investigation of the structure-activity correlation between the mPPU chemical structure and Au(III) adsorption performance.
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Affiliation(s)
- Bo Lin
- College of Materials, Xiamen University, Xiamen 361005, P. R. China
| | - Wangzhi Chen
- College of Materials, Xiamen University, Xiamen 361005, P. R. China
| | - Yujie Lei
- College of Materials, Xiamen University, Xiamen 361005, P. R. China
| | - Xingyu Ma
- College of Materials, Xiamen University, Xiamen 361005, P. R. China
| | - Jieyao Wang
- College of Materials, Xiamen University, Xiamen 361005, P. R. China
| | - Lei Li
- College of Materials, Xiamen University, Xiamen 361005, P. R. China
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16
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Li T, Zhang Y, Ren M, Mu Y, Zhang J, Yuan Y, Zhang M, Wang P. Triisocyanate Derived Interlayer and High-Melting-Point Doping Promoter Boost Operational Stability of Perovskite Solar Cells. Angew Chem Int Ed Engl 2024; 63:e202401604. [PMID: 38414115 DOI: 10.1002/anie.202401604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 02/26/2024] [Accepted: 02/27/2024] [Indexed: 02/29/2024]
Abstract
Formamidinium lead triiodide serves as the optimal light-absorbing layer in single-junction perovskite solar cells. However, achieving operational stability of high-efficiency n-i-p type devices at elevated temperatures remains challenging. In this work, we implemented effective surface modifications on microcrystalline perovskite films. This involved the nucleophilic addition of formamidinium cations and coordination of residual PbI2 with triphenylmethane triisocyanate as well as subsequent polymerization. The in situ growth of a cross-linking network chemically anchored on the perovskite film in this approach effectively reduced trap densities, favorably altered surface work function, suppressing interface charge recombination and thus enhancing cell efficiency. Coupled with a high-melting-point air-doping promoter, we fabricated n-i-p type perovskite solar cells surpassing 25 % efficiency, demonstrating excellent operational stability at 65 °C.
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Affiliation(s)
- Tianyu Li
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
| | - Yuyan Zhang
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
| | - Ming Ren
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
| | - Yanfei Mu
- Institute for New Energy Materials and Low Carbon Technologies, Tianjin University of Technology, Tianjin, 300384, China
| | - Jidong Zhang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
| | - Yi Yuan
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
| | - Min Zhang
- Institute for New Energy Materials and Low Carbon Technologies, Tianjin University of Technology, Tianjin, 300384, China
| | - Peng Wang
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
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17
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Lee GR, Lee EJ, Shin HS, Kim J, Kim I, Hong SC. Preparation of Non-Isocyanate Polyurethanes from Mixed Cyclic-Carbonated Compounds: Soybean Oil and CO 2-Based Poly(ether carbonate). Polymers (Basel) 2024; 16:1171. [PMID: 38675090 PMCID: PMC11053720 DOI: 10.3390/polym16081171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 04/09/2024] [Accepted: 04/19/2024] [Indexed: 04/28/2024] Open
Abstract
This study presents the synthesis and characterization of non-isocyanate polyurethanes (NIPU) derived from the copolymerization of cyclic-carbonated soybean oil (CSBO) and cyclic carbonate (CC)-terminated poly(ether carbonate) (RCC). Using a double-metal cyanide catalyst, poly(ether carbonate) polyol was first synthesized through the copolymerization of carbon dioxide and propylene oxide. The terminal hydroxyl group was then subjected to a substitution reaction with a five-membered CC group using glycerol-1,2-carbonate and oxalyl chloride, yielding RCC. Attempts to prepare NIPU solely using RCC and diamine were unsuccessful, possibly due to the low CC functionality and the aminolysis of RCC's linear carbonate repeating units. However, when combined with CSBO, solid NIPUs were successfully obtained, exhibiting good thermal stability along with enhanced mechanical properties compared to conventional CSBO-based NIPU formulations. Overall, this study underscores the potential of leveraging renewable resources and carbon capture technologies to develop sustainable NIPUs with tailored properties, thereby expanding their range of applications.
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Affiliation(s)
- Ga Ram Lee
- HMC, Department of Nanotechnology and Advanced Materials Engineering, Sejong University, 209 Neungdong-ro, Seoul 05006, Republic of Korea; (G.R.L.); (E.J.L.)
| | - Eun Jong Lee
- HMC, Department of Nanotechnology and Advanced Materials Engineering, Sejong University, 209 Neungdong-ro, Seoul 05006, Republic of Korea; (G.R.L.); (E.J.L.)
| | - Hye Sun Shin
- Industrial Gas Research TF Team, Particulate Matter Research Center, Research Institute of Industrial Science & Technology (RIST), 187-12 Geumho-ro, Gwangyang-si 57801, Republic of Korea; (H.S.S.); (J.K.)
| | - Joonwoo Kim
- Industrial Gas Research TF Team, Particulate Matter Research Center, Research Institute of Industrial Science & Technology (RIST), 187-12 Geumho-ro, Gwangyang-si 57801, Republic of Korea; (H.S.S.); (J.K.)
| | - Il Kim
- Department of Polymer Science and Engineering, Pusan National University, Busan 46241, Republic of Korea;
| | - Sung Chul Hong
- HMC, Department of Nanotechnology and Advanced Materials Engineering, Sejong University, 209 Neungdong-ro, Seoul 05006, Republic of Korea; (G.R.L.); (E.J.L.)
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18
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Rapp J, Borden MA, Bhat V, Sarabia A, Leibfarth FA. Continuous Polymer Synthesis and Manufacturing of Polyurethane Elastomers Enabled by Automation. ACS POLYMERS AU 2024; 4:120-127. [PMID: 38618002 PMCID: PMC11010252 DOI: 10.1021/acspolymersau.3c00033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 01/02/2024] [Accepted: 01/03/2024] [Indexed: 04/16/2024]
Abstract
Connecting polymer synthesis and processing is an important challenge for streamlining the manufacturing of polymeric materials. In this work, the automated synthesis of acrylate-capped polyurethane oligomers is integrated with vat photopolymerization 3D printing. This strategy enabled the rapid manufacturing of a library of polyurethane-based elastomeric materials with differentiated thermal and mechanical properties. The automated semicontinuous batch synthesis approach proved enabling for resins with otherwise short shelf lives because of the intimate connection between synthesis, formulation, and processing. Structure-property studies demonstrated the ability to tune properties through systematic alteration of cross-link density and chemical composition.
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Affiliation(s)
- Johann
L. Rapp
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27514, United States
| | - Meredith A. Borden
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27514, United States
| | - Vittal Bhat
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27514, United States
| | - Alexis Sarabia
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27514, United States
| | - Frank A. Leibfarth
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27514, United States
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19
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Hong WL, Ke CB, Chen JL. Chloramphenicol-imprinted polychitosan bounded with carbon dots as fluorescent sensor, dispersive sorbent, and drug carrier. Mikrochim Acta 2024; 191:227. [PMID: 38558113 DOI: 10.1007/s00604-024-06324-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Accepted: 03/22/2024] [Indexed: 04/04/2024]
Abstract
Chitosan, an abundant natural polysaccharide, was conjugated with carbon dots (CDs) and self-polymerized with chloramphenicol (CAP) templates to synthesize CD-incorporated and molecularly CAP-imprinted polychitosan (CD-MIC). The CD-MIC was used for fluorescent sensing, dispersive sorption, and dosage release of CAP at different pH levels. The sphere of action mechanism, approved by emission and excitation fluorescence, UV-Vis absorption, and fluorescence lifetime measurements, regulated the fluorescence static quenching. By the Perrin model, the quenching extent was linearly correlated to CAP within 0.17 - 33.2 μM (LOD = 37 nM) at pH 7.0. With an imprinting factor of 3.1, the CD-MIC was more selective for CAP than CD, although it was less sensitive to CAP. The recoveries of 5.0 μM CAP from milk matrix were 95% (RSD = 2.3%) for CD-MIC probes and 62% (RSD = 4.5%) for CD. The Langmuir and pseudo-second-order models preferably described the isothermal and kinetic sorptions of CAP into the imprinted cavities in CD-MICs, respectively. The Weber - Morris kinetic model showed three stages involved in intraparticle diffusion, which was pH-dependent and gradually arduous at the later stage, and showed external diffusion partly engaged in the diffusion mechanism. The 20 - 70% of CAP formulated in CAP-embedded CD-MICs were released in 8 - 48 h. The release percentage was lower at pH 7.0 than at pH 5.0 and 9.0, but the equilibrium time was shorter. At pH 7.0, the release percentage reached 45% at 10 min and slowly increased to 51% at 24 h.
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Affiliation(s)
- Wei-Lun Hong
- School of Pharmacy, China Medical University, No. 100, Sec. 1, Jingmao Rd., Beitun Dist, Taichung, 406040, Taiwan
| | - Ching-Bin Ke
- Department of Beauty and Health Care, Min-Hwei Junior College of Health Care Management, No. 1116, Sec 2, Zhongshan E. Rd, Tainan, 73658, Taiwan
| | - Jian-Lian Chen
- School of Pharmacy, China Medical University, No. 100, Sec. 1, Jingmao Rd., Beitun Dist, Taichung, 406040, Taiwan.
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20
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Matseketsa P, Mafukidze D, Pothupitiya L, Otuonye UP, Çimen Mutlu Y, Averkiev BB, Gadzikwa T. Unexpected reversal of reactivity in organic functionalities when immobilized together in a metal-organic framework (MOF). MOLECULAR SYSTEMS DESIGN & ENGINEERING 2024; 9:445-448. [PMID: 39108406 PMCID: PMC11299867 DOI: 10.1039/d3me00185g] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/10/2024]
Abstract
A mixed-ligand metal-organic framework (MOF) material composed of both amine- and hydroxyl-bearing linkers, KSU-1, was reacted with a variety of isocyanates. The hydroxyl groups reacted to a greater extent than the amines, in conflict with the previously observed relative nucleophilicities of these functionalities in the same MOF. When immobilized individually in monofunctional MOFs, the amine-functionalized linker was more reactive than the hydroxyl linker, indicating that the reactivity reversal observed in KSU-1 is due to the groups' mutual confinement within the MOF.
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Affiliation(s)
- Pricilla Matseketsa
- Department of Chemistry, Kansas State University, Manhattan, Kansas 66506, United States
| | - Donovan Mafukidze
- Department of Chemistry, Kansas State University, Manhattan, Kansas 66506, United States
| | - Lahiru Pothupitiya
- Department of Chemistry, Kansas State University, Manhattan, Kansas 66506, United States
| | - Udo P Otuonye
- Department of Chemistry, Kansas State University, Manhattan, Kansas 66506, United States
| | - Yasemin Çimen Mutlu
- Department of Chemistry, Faculty of Science, Eskisehir Technical University, 26470 Eskişehir, Turkey
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Boris B Averkiev
- Department of Chemistry, Kansas State University, Manhattan, Kansas 66506, United States
| | - Tendai Gadzikwa
- Department of Chemistry, Kansas State University, Manhattan, Kansas 66506, United States
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21
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Sintas JI, Bean RH, Zhang R, Long TE. Nonisocyanate Polyurethane Segmented Copolymers from Bis-Carbonylimidazolides. Macromol Rapid Commun 2024:e2400057. [PMID: 38471478 DOI: 10.1002/marc.202400057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 02/22/2024] [Indexed: 03/14/2024]
Abstract
Bis-carbonylimidazolide (BCI) functionalization enables an efficient synthetic strategy to generate high molecular weight segmented nonisocyanate polyurethanes (NIPUs). Melt phase polymerization of ED-2003 Jeffamine, 4,4'-methylenebis(cyclohexylamine), and a BCI monomer that mimics a 1,4-butanediol chain extender enables polyether NIPUs that contain varying concentrations of hard segments ranging from 40 to 80 wt. %. Dynamic mechanical analysis and differential scanning calorimetry reveal thermal transitions for soft, hard, and mixed phases. Hard segment incorporations between 40 and 60 wt. % display up to three distinct phases pertaining to the poly(ethylene glycol) (PEG) soft segment Tg , melting transition, and hard segment Tg , while higher hard segment concentrations prohibit soft segment crystallization, presumably due to restricted molecular mobility from the hard segment. Atomic force microscopy allows for visualization and size determination of nanophase-separated regimes, revealing a nanoscale rod-like assembly of HS. Small-angle X-ray scattering confirms nanophase separation within the NIPU, characterizing both nanoscale amorphous domains and varying degrees of crystallinity. These NIPUs, which are synthesized with BCI monomers, display expected phase separation that is comparable to isocyanate-derived analogues. This work demonstrates nanophase separation in BCI-derived NIPUs and the feasibility of this nonisocyanate synthetic pathway for the preparation of segmented PU copolymers.
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Affiliation(s)
- Jose I Sintas
- School of Molecular Sciences & Biodesign Center for Sustainable Macromolecular Materials and Manufacturing (SM3), Arizona State University, Tempe, AZ, 85287, USA
| | - Ren H Bean
- School of Molecular Sciences & Biodesign Center for Sustainable Macromolecular Materials and Manufacturing (SM3), Arizona State University, Tempe, AZ, 85287, USA
| | - Rui Zhang
- Eyring Materials Center, Arizona State University, Tempe, AZ, 85287, USA
| | - Timothy E Long
- School of Molecular Sciences & Biodesign Center for Sustainable Macromolecular Materials and Manufacturing (SM3), Arizona State University, Tempe, AZ, 85287, USA
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22
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Gao JH, Wan B, Zheng MS, Luo L, Zhang H, Zhao QL, Chen G, Zha JW. High-toughness, extensile and self-healing PDMS elastomers constructed by decuple hydrogen bonding. MATERIALS HORIZONS 2024; 11:1305-1314. [PMID: 38169374 DOI: 10.1039/d3mh01265d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
Elastomers are widely used in traditional industries and new intelligent fields. However, they are inevitably damaged by electricity, heat, force, etc. during the working process. With the continuous improvement of reliability and environmental protection requirements in human production and living, it is vital to develop elastomer materials with good mechanical properties that are not easily damaged and can self-heal after being damaged. Nevertheless, there are often contradictions between mechanical properties and self-healing as well as toughness, strength, and ductility. Herein, a strong and dynamic decuple hydrogen bonding based on carbon hydrazide (CHZ) is reported, accompanied with soft polydimethylsiloxane (PDMS) chains to prepare self-healing (efficiency 98.7%), recyclable, and robust elastomers (CHZ-PDMS). The strategy of decuple hydrogen bonding will significantly impact the study of the mechanical properties of elastomers. High stretchability (1731%) and a high toughness of 23.31 MJ m-3 are achieved due to the phase-separated structure and energy dissipation. The recyclability of CHZ-PDMS further supports the concept of environmental protection. The application of CHZ-PDMS as a flexible strain sensor exhibited high sensitivity.
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Affiliation(s)
- Jing-Han Gao
- Beijing Advanced Innovation Centre for Materials Genome Engineering, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, P. R. China.
| | - Baoquan Wan
- Beijing Advanced Innovation Centre for Materials Genome Engineering, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, P. R. China.
| | - Ming-Sheng Zheng
- Beijing Advanced Innovation Centre for Materials Genome Engineering, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, P. R. China.
| | - Longbo Luo
- State Key Laboratory of Polymer Material and Engineering, College of Polymer Science and Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Hongkuan Zhang
- School of Mechanical and Materials Engineering, North China University of Technology, Beijing, 100041, China
| | - Quan-Liang Zhao
- School of Mechanical and Materials Engineering, North China University of Technology, Beijing, 100041, China
| | - George Chen
- Department of Electronics and Computer Science, University of Southampton, Southampton SO17 1BJ, UK
| | - Jun-Wei Zha
- Beijing Advanced Innovation Centre for Materials Genome Engineering, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, P. R. China.
- Shunde Graduate School of University of Science and Technology Beijing, Foshan, 528300, P. R. China
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23
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Iyer D, Galadari M, Wirawan F, Huaco V, Martinez R, Gallagher MT, Pilon L, Ono K, Simonetti DA, Sant GN, Srivastava S. High-Strength Organic-Inorganic Composites with Superior Thermal Insulation and Acoustic Attenuation. ACS POLYMERS AU 2024; 4:86-97. [PMID: 38371729 PMCID: PMC10870751 DOI: 10.1021/acspolymersau.3c00037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Revised: 12/14/2023] [Accepted: 12/18/2023] [Indexed: 02/20/2024]
Abstract
We demonstrate facile fabrication of highly filled, lightweight organic-inorganic composites comprising polyurethanes covalently linked with naturally occurring clinoptilolite microparticles. These polyurethane/clinoptilolite (PUC) composites are shown to mitigate particle aggregation usually observed in composites with high particle loadings and possess enhanced thermal insulation and acoustic attenuation compared with conventionally employed materials (e.g., drywall and gypsum). In addition to these functional properties, the PUC composites also possess flexural strengths and strain capacities comparable to and higher than ordinary Portland cement (OPC), respectively, while being ∼1.5× lighter than OPC. The porosity, density, and mechanical and functional properties of these composites are tuned by systematically varying their composition (diisocyanate, polyurethane, and inorganic contents) and the nature of the organic (reactivity and source of polyol) components. The fabrication process involves mild curing conditions and uses commonly available reagents (naturally occurring aluminosilicate particles, polyols, and diisocyanate), thereby making the process scalable. Finally, the composite properties are shown to be independent of the polyol source (virgin or recycled), underlining the generality of this approach for the scalable utilization of recycled polyols.
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Affiliation(s)
- Divya Iyer
- Department
of Chemical and Biomolecular Engineering, University of California, Los Angeles, California 90095, United States
| | - Mohammad Galadari
- Department
of Chemical and Biomolecular Engineering, University of California, Los Angeles, California 90095, United States
| | - Fernaldy Wirawan
- Department
of Chemical and Biomolecular Engineering, University of California, Los Angeles, California 90095, United States
| | - Vanessa Huaco
- Department
of Chemical and Biomolecular Engineering, University of California, Los Angeles, California 90095, United States
| | - Ricardo Martinez
- Department
of Mechanical and Aerospace Engineering, University of California, Los
Angeles, California 90095, United States
| | | | - Laurent Pilon
- Department
of Mechanical and Aerospace Engineering, University of California, Los
Angeles, California 90095, United States
- Department
of Bioengineering, University of California, Los Angeles, California 90095, United States
| | - Kanji Ono
- Department
of Materials Science and Engineering, University
of California, Los Angeles, California 90095, United States
| | - Dante A. Simonetti
- Department
of Chemical and Biomolecular Engineering, University of California, Los Angeles, California 90095, United States
- Institute
for Carbon Management, University of California, Los Angeles, California 90095, United States
| | - Gaurav N. Sant
- Institute
for Carbon Management, University of California, Los Angeles, California 90095, United States
- Department
of Civil and Environmental Engineering, University of California, Los
Angeles, California 90095, United States
- California
NanoSystems Institute, University of California, Los Angeles, California 90095, United States
| | - Samanvaya Srivastava
- Department
of Chemical and Biomolecular Engineering, University of California, Los Angeles, California 90095, United States
- Institute
for Carbon Management, University of California, Los Angeles, California 90095, United States
- California
NanoSystems Institute, University of California, Los Angeles, California 90095, United States
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24
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Zhao Y, Zhang Q, Lei H, Zhou X, Du G, Pizzi A, Xi X. Preparation and fire resistance modification on tannin-based non-isocyanate polyurethane (NIPU) rigid foams. Int J Biol Macromol 2024; 258:128994. [PMID: 38157632 DOI: 10.1016/j.ijbiomac.2023.128994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 12/06/2023] [Accepted: 12/21/2023] [Indexed: 01/03/2024]
Abstract
Non-isocyanate polyurethane (NIPU) as a new type of polyurethane material has become a hot research topic in the polyurethane industry due to its no utilization of toxic isocyanates during the synthesis process. And the developing on recyclable biomass materials has also much attention in the industrial sector, hence the preparation and application of bio-based NIPU has also become a very meaningful study work. So, in this paper, tannin as a biomass material was used to synthesize tannin based non-isocyanate polyurethanes (TNIPU) resin, and then successfully prepared a self-blowing TNIPU foam at room temperature by using formic acid as initiator and glutaraldehyde as cross-linking agent. The compressive strength of this foam as high as 0.8 MPa, which is an excellent compressive performance. Meanwhile it will return to the state before compression when removing the pressure. This indicating that the foam has good toughness. In addition, formic acid can react with the amino groups in TNIPU to form amide substances, and generated enough heat to initiate the foaming process. Glutaraldehyde, as a crosslinking agent, reacts with the amino group in TNIPU to form a network structure system. By scanning electron microscope (SEM) observation of the cell shapes, it can be seen that the foam cells were uniform in size and shape, and the cell pores showed open and closed cells. The limiting oxygen index (LOI) tested value of this TNIPU foam is 24.45 % without any flame retardant added, but compared to the LOI value of polyurethane foam (17 %-19 %), TNIPU foam reveal a better fire resistance. It has a wider application prospect.
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Affiliation(s)
- Yunsen Zhao
- Yunnan Key Laboratory of Wood Adhesives and Glue Products, College of Material science and Engineering, Southwest Forestry University, 650224 Kunming, China
| | - Qianyu Zhang
- Yunnan Key Laboratory of Wood Adhesives and Glue Products, College of Material science and Engineering, Southwest Forestry University, 650224 Kunming, China
| | - Hong Lei
- College of Chemistry and Material Engineering, Zhejiang A&F University, 311300 Hangzhou, China.
| | - Xiaojian Zhou
- International Joint Research Center for Biomass materials, Southwest Forestry University, 650224 Kunming, China
| | - Guanben Du
- Yunnan Key Laboratory of Wood Adhesives and Glue Products, College of Material science and Engineering, Southwest Forestry University, 650224 Kunming, China
| | - Antonio Pizzi
- LERMAB, University of Lorraine, 88000 Epinal, France
| | - Xuedong Xi
- Yunnan Key Laboratory of Wood Adhesives and Glue Products, College of Material science and Engineering, Southwest Forestry University, 650224 Kunming, China; Key Laboratory of Plant Fiber Functional Materials, National Forestry and Grassland Administration, Fujian Agriculture and Forestry University, 350108 Fuzhou, China.
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25
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Xie S, Li Y, Chai Y, Chen Q, North M, Xie H. Introducing the Reversible Reaction of CO 2 with Diamines into Nonisocyanate Polyurethane Synthesis. ACS Macro Lett 2024; 13:14-20. [PMID: 38091470 DOI: 10.1021/acsmacrolett.3c00621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2024]
Abstract
Nonisocyanate polyurethanes (NIPUs) are considered greener alternatives to traditional polyurethanes, and the preparation of NIPUs considerably depends on the design and synthesis of suitable monomers. Herein, we propose a toolbox for in situ capturing and conversion of CO2 into α,ω-diene-functionalized carbamate monomers by taking advantage of the facile reversible reaction of CO2 with diamines in the presence of organic superbases. The activation of CO2 into carbamate intermedia was demonstrated by NMR and in situ FTIR, and the optimal conditions to prepare α,ω-diene-functionalized carbamate monomers were established. Thiol-ene and acyclic diene metathesis (ADMET) polymerization of these monomers under mild conditions yielded a series of poly(thioether urethane)s and unsaturated aromatic-aliphatic polyurethanes with high yield and glass transition temperatures ranging from -26.8 to -1.1 °C. These obtained NIPUs could be further modified via postpolymerization oxidation or hydrogenation to yield poly(sulfone urethane) and saturated polyurethane with tunable properties.
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Affiliation(s)
- Sibo Xie
- Department of Polymeric Materials & Engineering, College of Materials & Metallurgy, Guizhou University, Huaxi District, Guiyang 550025, P.R. China
| | - Yunqi Li
- Department of Polymeric Materials & Engineering, College of Materials & Metallurgy, Guizhou University, Huaxi District, Guiyang 550025, P.R. China
| | - Yang Chai
- Department of Polymeric Materials & Engineering, College of Materials & Metallurgy, Guizhou University, Huaxi District, Guiyang 550025, P.R. China
| | - Qin Chen
- Department of Polymeric Materials & Engineering, College of Materials & Metallurgy, Guizhou University, Huaxi District, Guiyang 550025, P.R. China
| | - Michael North
- Green Chemistry Centre of Excellence, Department of Chemistry, University of York, York YO10 5DD, U.K
| | - Haibo Xie
- Department of Polymeric Materials & Engineering, College of Materials & Metallurgy, Guizhou University, Huaxi District, Guiyang 550025, P.R. China
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26
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Deng Z, Liang X, Gillies ER. Click to Self-immolation: A "Click" Functionalization Strategy towards Triggerable Self-Immolative Homopolymers and Block Copolymers. Angew Chem Int Ed Engl 2024; 63:e202317063. [PMID: 38029347 DOI: 10.1002/anie.202317063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 11/28/2023] [Accepted: 11/29/2023] [Indexed: 12/01/2023]
Abstract
Self-immolative polymers (SIPs) are a class of degradable macromolecules that undergo stimuli-triggered head-to-tail depolymerization. However, a general approach to readily end-functionalize SIP precursors for programmed degradation remains elusive, restricting access to complex, functional SIP-based materials. Here we present a "click to self-immolation" strategy based on aroyl azide-capped SIP precursors, enabling the facile construction of diverse SIPs with different trigger units through a Curtius rearrangement and alcohol/thiol-isocyanate "click" reaction. This strategy is also applied to polymer-polymer coupling to access fully depolymerizable block copolymer amphiphiles, even combining different SIP backbones. Our results demonstrate that the depolymerization can be actuated efficiently under physiologically-relevant conditions by the removal of the trigger units and ensuing self-immolation of the p-aminobenzyl carbonate linkage, indicating promise for controlled release applications involving nanoparticles and hydrogels.
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Affiliation(s)
- Zhengyu Deng
- Department of Chemistry, The University of Western Ontario, London, Ontario, N6A 5B7, Canada
| | - Xiaoli Liang
- Department of Chemistry, The University of Western Ontario, London, Ontario, N6A 5B7, Canada
| | - Elizabeth R Gillies
- Department of Chemistry, The University of Western Ontario, London, Ontario, N6A 5B7, Canada
- Department of Chemical and Biochemical Engineering, The University of Western Ontario, London, Ontario, N6A 5B9, Canada
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27
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Wang R, Zhang J, Sun Z, Jian X, Xu Y, Zhou X, Liang X, Lin J, Li B, Mu W, Li Y. Eucalyptol-loaded microcapsules combined with Cynanchum komarovii extracts provide long-term and low-risk management of Chinese wolfberry (Lycium barbarum L.). ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 270:115874. [PMID: 38176181 DOI: 10.1016/j.ecoenv.2023.115874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 11/21/2023] [Accepted: 12/19/2023] [Indexed: 01/06/2024]
Abstract
Realizing eco-friendly, long-term, and low-risk aphid control on Lycium barbarum (medicinal cash crop) using a Cynanchum komarovii extracts and eucalyptus oil-loaded microcapsules (EOMCs) formulation compositions is viable. In this study, the aim is to optimize the composition of Cynanchum komarovii extracts and EOMCs formulation for effective control of aphids, the release of EOMCs was controlled by changing the cross-linking degree of the shell to match the aphid control characteristics of Cynanchum komarovii extracts. Four types of polyamines were used as cross-linking agents for the preparation of EOMCs by interfacial polymerization. The bioactivity, wettability, and field application efficacy of Cynanchum komarovii extracts and different EOMCs formulation compositions were evaluated. These EOMCs exhibited an encapsulation efficiency exceeding 85 %. The control efficiency of the formulation compositions of microcapsules with a moderate release rate and Cynanchum komarovii extracts on aphids remained at 62.86 %, while the control efficiency of the combination of microcapsules with the fastest and slowest rates with Cynanchum komarovii extracts was only 48.62 % and 57.11 %, respectively. The formulation compositions of Cynanchum komarovii extracts with all four types of EOMCs were found to be safe for Chinese wolfberry plants. Overall, by selecting appropriate polyamines during fabrication, the release rate can be effectively controlled to achieve sustainable and low-risk aphid control in Lycium barbarum through compounding with selected microcapsules.
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Affiliation(s)
- Rui Wang
- Wolfberry Science Research Institute, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan 750002, Ningxia, PR China; Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Jian Zhang
- Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Zhengyi Sun
- Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Xuewen Jian
- Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Yue Xu
- Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Xuan Zhou
- Wolfberry Science Research Institute, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan 750002, Ningxia, PR China; National Wolfberry Engineering Research Center, Yinchuan 750002, Ningxia, PR China
| | - Xiaojie Liang
- Wolfberry Science Research Institute, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan 750002, Ningxia, PR China; National Wolfberry Engineering Research Center, Yinchuan 750002, Ningxia, PR China
| | - Jin Lin
- Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, PR China; Research Center of Pesticide Environmental Toxicology, Shandong Agricultural University, Tai'an 271018, Shandong, PR China
| | - Beixing Li
- Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, PR China; Research Center of Pesticide Environmental Toxicology, Shandong Agricultural University, Tai'an 271018, Shandong, PR China
| | - Wei Mu
- Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, PR China; Research Center of Pesticide Environmental Toxicology, Shandong Agricultural University, Tai'an 271018, Shandong, PR China
| | - Yuekun Li
- Wolfberry Science Research Institute, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan 750002, Ningxia, PR China; National Wolfberry Engineering Research Center, Yinchuan 750002, Ningxia, PR China.
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28
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Oluwoye I, Machuca LL, Higgins S, Suh S, Galloway TS, Halley P, Tanaka S, Iannuzzi M. Degradation and lifetime prediction of plastics in subsea and offshore infrastructures. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 904:166719. [PMID: 37673242 DOI: 10.1016/j.scitotenv.2023.166719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 08/25/2023] [Accepted: 08/29/2023] [Indexed: 09/08/2023]
Abstract
Engineering and civil developments have relied on synthetic polymers and plastics (including polyethylene, polypropylene, polyamide, etc.) for decades, especially where their durability protects engineering structures against corrosion and other environmental stimuli. Offshore oil and gas infrastructure and renewable energy platforms are typical examples, where these plastics (100,000 s of metric tonnes worldwide) are used primarily as functional material to protect metallic flowlines and subsea equipment against seawater corrosion. Despite this, the current literature on polymers is limited to sea-surface environments, and a model for subsea degradation of plastics is needed. In this review, we collate relevant studies on the degradation of plastics and synthetic polymers in marine environments to gain insight into the fate of these materials when left in subsea conditions. We present a new mathematical model that accounts for various physicochemical changes in the oceanic environment as a function of depth to predict the lifespan of synthetic plastics and the possible formation of plastic debris, e.g., microplastics. We found that the degradation rate of the plastics decreases significantly as a function of water depth and can be estimated quantitatively by the mathematical model that accounts for the effect (and sensitivity) of geographical location, temperature, light intensity, hydrostatic pressure, and marine sediments. For instance, it takes a subsea polyethylene coating about 800 years to degrade on ocean floor (as opposed to <400 years in shallow coastal waters), generating 1000s of particles per g of degradation under certain conditions. Our results demonstrate how suspended sediments in the water column are likely to compensate for the decreasing depth-corrected degradation rates, resulting in surface abrasion and the formation of plastic debris such as microplastics. This review, and the complementing data, will be significant for the environmental impact assessment of plastics in subsea infrastructures. Moreover, as these infrastructures reach the end of their service life, the management of the plastic components becomes of great interest to environmental regulators, industry, and the community, considering the known sizeable impacts of plastics on global biogeochemical cycles.
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Affiliation(s)
- Ibukun Oluwoye
- Curtin Corrosion Centre, Western Australian School of Mines: Minerals, Energy and Chemical Engineering, Curtin University, Perth, Australia; Graduate School of Global Environmental Studies, Kyoto University, Yoshida-Honmachi, Sakyo-ku, Kyoto, Japan.
| | - Laura L Machuca
- Curtin Corrosion Centre, Western Australian School of Mines: Minerals, Energy and Chemical Engineering, Curtin University, Perth, Australia
| | - Stuart Higgins
- Curtin University, GPO Box U1987, Perth, WA 6824, Australia
| | - Sangwon Suh
- Bren School of Environmental Science and Management, University of California, Santa Barbara, CA 93106, USA
| | - Tamara S Galloway
- College of Life and Environmental Sciences, University of Exeter, Exeter EX4 4QD, UK
| | - Peter Halley
- School of Chemical Engineering, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Shuhei Tanaka
- Graduate School of Global Environmental Studies, Kyoto University, Yoshida-Honmachi, Sakyo-ku, Kyoto, Japan
| | - Mariano Iannuzzi
- Curtin Corrosion Centre, Western Australian School of Mines: Minerals, Energy and Chemical Engineering, Curtin University, Perth, Australia
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29
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Liu Z, Fang Z, Zheng N, Yang K, Sun Z, Li S, Li W, Wu J, Xie T. Chemical upcycling of commodity thermoset polyurethane foams towards high-performance 3D photo-printing resins. Nat Chem 2023; 15:1773-1779. [PMID: 37640848 DOI: 10.1038/s41557-023-01308-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 07/26/2023] [Indexed: 08/31/2023]
Abstract
Polyurethane thermosets are indispensable to modern life, but their widespread use has become an increasingly pressing environmental burden. Current recycling approaches are economically unattractive and/or lead to recycled products of inferior properties, making their large-scale implementation unviable. Here we report a highly efficient chemical strategy for upcycling thermoset polyurethane foams that yields products of much higher economic values than the original material. Starting from a commodity foam, we show that the polyurethane network is chemically fragmented into a dissolvable mixture under mild conditions. We demonstrate that three-dimensional photo-printable resins with tunable material mechanical properties-which are superior to commercial high-performance counterparts-can be formulated with the addition of various network reforming additives. Our direct upcycling of commodity foams is economically attractive and can be implemented with ease, and the principle can be expanded to other commodity thermosets.
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Affiliation(s)
- Zenghe Liu
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou, China
| | - Zizheng Fang
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou, China
| | - Ning Zheng
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China
| | - Kexuan Yang
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China
| | - Zhuo Sun
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China
- Ningbo Research Institute, Zhejiang University, Ningbo, China
| | - Sujing Li
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China
| | - Wei Li
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China
| | - Jingjun Wu
- Ningbo Research Institute, Zhejiang University, Ningbo, China
| | - Tao Xie
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China.
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30
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Yu N, An ZW, Zhang JL, Cheng BX, Ye K, Wang S, Wu W, Li RKY, Tan X, Zhao H. Recent Advances in Tailored Fabrication and Properties of Biobased Self-Healing Polyurethane. Biomacromolecules 2023; 24:4605-4621. [PMID: 37917193 DOI: 10.1021/acs.biomac.3c00805] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2023]
Abstract
With the emergence of challenges in the environmental degradation and resource scarcity fields, the research of biobased self-healing polyurethane (BSPU) has become a prevailing trend in the technology of the polyurethane industry and a promising direction for developing biomass resources. Here, the production of BSPU from lignocellulose, vegetable oil, chitosan, collagen, and coumarin is classified, and the principles of designing polyurethane based on compelling examples using the latest methods and current research are summarized. Moreover, the impact of biomass materials on self-healing and mechanical properties, as well as the tailored performance method, are presented in detail. Finally, the applications of BSPU in biomedicine, sensors, coatings, etc. are also summarized, and the possible challenges and development prospects are explored to helpfully make progress in the development of BSPU. These findings demonstrate valuable references and practical significance for future BSPU research.
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Affiliation(s)
- Ning Yu
- School of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, China
| | - Ze-Wei An
- School of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, China
| | - Jia-Le Zhang
- School of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, China
| | - Bing-Xu Cheng
- School of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, China
| | - Kang Ye
- School of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, China
| | - Shuangfei Wang
- School of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, China
| | - Wei Wu
- Jihua Laboratory, Foshan, 528200, China
| | - Robert K Y Li
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong SAR, China
| | - Xuecai Tan
- Key Laboratory of Chemistry and Engineering of Forest Products, State Ethnic Affairs Commission, Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, Guangxi Minzu University, Nanning, 530006, China
| | - Hui Zhao
- School of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, China
- Key Laboratory of Chemistry and Engineering of Forest Products, State Ethnic Affairs Commission, Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, Guangxi Minzu University, Nanning, 530006, China
- State Key Laboratory of Biocatalysis and Enzyme Engineering School of Life Science, Hubei University, Wuhan, 430062, China
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31
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Pierrard A, Aqil A, Detrembleur C, Jérôme C. Thermal and UV Curable Formulations of Poly(propylene glycol)-Poly(hydroxyurethane) Elastomers toward Nozzle-Based 3D Photoprinting. Biomacromolecules 2023; 24:4375-4384. [PMID: 36113039 DOI: 10.1021/acs.biomac.2c00860] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
In this work, isocyanate-free formulations for poly(propylene glycol) polyurethane elastomers are studied. These formulations are based on poly(propylene glycol) end-capped by CO2-sourced cyclic carbonate (bisCC PPG) macromonomers able to react with amines leading to poly(hydroxyurethane)s. In order to obtain covalent networks, two curing approaches are studied. First, the direct thermally activated cross-linking of bisCC PPG with a mixture of various aliphatic or aromatic diamines and a triamine is investigated, and in particular the nature of the diamine on the mechanical properties. In the second approach, UV-activated formulations are developed by reacting bisCC PPG with allylamine followed by the addition of a trithiol by photoactivated thiol-ene reaction. The swelling tests show that both systems provide highly cross-linked polymer networks and complementary characterizations highlighted excellent mechanical properties. Thanks to the fast curing and adapted viscosity of the developed photoactive formulation, the latter was found suitable for use as a photoresin for 3D printing as demonstrated by printing a vaginal ring by a nozzle-based photoprinter.
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Affiliation(s)
- Anna Pierrard
- Center for Education and Research on Macromolecules (CERM), CESAM RU, University of Liège, Quartier Agora, Allée du six Août, 13, 4000 Liège, Belgium
| | - Abdelhafid Aqil
- Center for Education and Research on Macromolecules (CERM), CESAM RU, University of Liège, Quartier Agora, Allée du six Août, 13, 4000 Liège, Belgium
| | - Christophe Detrembleur
- Center for Education and Research on Macromolecules (CERM), CESAM RU, University of Liège, Quartier Agora, Allée du six Août, 13, 4000 Liège, Belgium
| | - Christine Jérôme
- Center for Education and Research on Macromolecules (CERM), CESAM RU, University of Liège, Quartier Agora, Allée du six Août, 13, 4000 Liège, Belgium
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Voronin DV, Sitmukhanova E, Mendgaziev RI, Rubtsova MI, Kopitsyn D, Cherednichenko KA, Semenov AP, Fakhrullin R, Shchukin DG, Vinokurov V. Polyurethane/ n-Octadecane Phase-Change Microcapsules via Emulsion Interfacial Polymerization: The Effect of Paraffin Loading on Capsule Shell Formation and Latent Heat Storage Properties. MATERIALS (BASEL, SWITZERLAND) 2023; 16:6460. [PMID: 37834594 PMCID: PMC10573777 DOI: 10.3390/ma16196460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 09/22/2023] [Accepted: 09/26/2023] [Indexed: 10/15/2023]
Abstract
Organic phase-change materials (PCMs) hold promise in developing advanced thermoregulation and responsive energy systems owing to their high latent heat capacity and thermal reliability. However, organic PCMs are prone to leakages in the liquid state and, thus, are hardly applicable in their pristine form. Herein, we encapsulated organic PCM n-Octadecane into polyurethane capsules via polymerization of commercially available polymethylene polyphenylene isocyanate and polyethylene glycol at the interface oil-in-water emulsion and studied how various n-Octadecane feeding affected the shell formation, capsule structure, and latent heat storage properties. The successful shell polymerization and encapsulation of n-Octadecane dissolved in the oil core was verified by confocal microscopy and Fourier-transform infrared spectroscopy. The mean capsule size varied from 9.4 to 16.7 µm while the shell was found to reduce in thickness from 460 to 220 nm as the n-Octadecane feeding increased. Conversely, the latent heat storage capacity increased from 50 to 132 J/g corresponding to the growth in actual n-Octadecane content from 25% to 67% as revealed by differential scanning calorimetry. The actual n-Octadecane content increased non-linearly along with the n-Octadecane feeding and reached a plateau at 66-67% corresponded to 3.44-3.69 core-to-monomer ratio. Finally, the capsules with the reasonable combination of structural and thermal properties were evaluated as a thermoregulating additive to a commercially available paint.
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Affiliation(s)
- Denis V. Voronin
- Department of Physical and Colloid Chemistry, National University of Oil and Gas “Gubkin University”, 119991 Moscow, Russia (K.A.C.); (A.P.S.); (V.V.)
| | - Eliza Sitmukhanova
- Department of Physical and Colloid Chemistry, National University of Oil and Gas “Gubkin University”, 119991 Moscow, Russia (K.A.C.); (A.P.S.); (V.V.)
| | - Rais I. Mendgaziev
- Department of Physical and Colloid Chemistry, National University of Oil and Gas “Gubkin University”, 119991 Moscow, Russia (K.A.C.); (A.P.S.); (V.V.)
| | - Maria I. Rubtsova
- Department of Physical and Colloid Chemistry, National University of Oil and Gas “Gubkin University”, 119991 Moscow, Russia (K.A.C.); (A.P.S.); (V.V.)
| | - Dmitry Kopitsyn
- Department of Physical and Colloid Chemistry, National University of Oil and Gas “Gubkin University”, 119991 Moscow, Russia (K.A.C.); (A.P.S.); (V.V.)
| | - Kirill A. Cherednichenko
- Department of Physical and Colloid Chemistry, National University of Oil and Gas “Gubkin University”, 119991 Moscow, Russia (K.A.C.); (A.P.S.); (V.V.)
| | - Anton P. Semenov
- Department of Physical and Colloid Chemistry, National University of Oil and Gas “Gubkin University”, 119991 Moscow, Russia (K.A.C.); (A.P.S.); (V.V.)
| | - Rawil Fakhrullin
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kreml uramı 18, 42000 Kazan, Republic of Tatarstan, Russia;
| | - Dmitry G. Shchukin
- Department of Chemistry, Stephenson Institute for Renewable Energy, University of Liverpool, Liverpool L69 7ZD, UK;
| | - Vladimir Vinokurov
- Department of Physical and Colloid Chemistry, National University of Oil and Gas “Gubkin University”, 119991 Moscow, Russia (K.A.C.); (A.P.S.); (V.V.)
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33
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Iswanto AH, Lubis MAR, Sutiawan J, Al-Edrus SSO, Lee SH, Antov P, Kristak L, Reh R, Mardawati E, Santoso A, Kusumah SS. Latest Advancements in the Development of High-Performance Lignin- and Tannin-Based Non-Isocyanate Polyurethane Adhesive for Wood Composites. Polymers (Basel) 2023; 15:3864. [PMID: 37835913 PMCID: PMC10575091 DOI: 10.3390/polym15193864] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 09/11/2023] [Accepted: 09/18/2023] [Indexed: 10/15/2023] Open
Abstract
The depletion of natural resources and increasing environmental apprehension regarding the reduction of harmful isocyanates employed in manufacturing polyurethanes (PUs) have generated significant attention from both industrial and academic sectors. This attention is focused on advancing bio-based non-isocyanate polyurethane (NIPU) resins as viable and sustainable substitutes, possessing satisfactory properties. This review presents a comprehensive analysis of the progress made in developing bio-based NIPU polymers for wood adhesive applications. The main aim of this paper is to conduct a comprehensive analysis of the latest advancements in the production of high-performance bio-based NIPU resins derived from lignin and tannin for wood composites. A comprehensive evaluation was conducted on scholarly publications retrieved from the Scopus database, encompassing the period from January 2010 to April 2023. In NIPU adhesive manufacturing, the exploration of substitute materials for isocyanates is imperative, due to their inherent toxicity, high cost, and limited availability. The process of demethylation and carbonation of lignin and tannin has the potential to produce polyphenolic compounds that possess hydroxyl and carbonyl functional groups. Bio-based NIPUs can be synthesized through the reaction involving diamine molecules. Previous studies have provided evidence indicating that NIPUs derived from lignin and tannin exhibit enhanced mechanical properties, decreased curing temperatures and shortened pressing durations, and are devoid of isocyanates. The characterization of NIPU adhesives based on lignin and tannin was conducted using various analytical techniques, including Fourier-transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), matrix-assisted laser desorption/ionization with time-of-flight (MALDI-TOF) mass spectrometry, and gel permeation chromatography (GPC). The adhesive performance of tannin-based NIPU resins was shown to be superior to that of lignin-based NIPUs. This paper elucidates the potential of lignin and tannin as alternate sources for polyols in the manufacturing of NIPUs, specifically for their application as wood adhesives.
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Affiliation(s)
- Apri Heri Iswanto
- Department of Forest Product, Faculty of Forestry, Universitas Sumatera Utara, Medan 20155, Indonesia;
| | - Muhammad Adly Rahandi Lubis
- Research Center for Biomass and Bioproducts, National Research and Innovation Agency, Cibinong 16911, Indonesia; (M.A.R.L.); (A.S.); (S.S.K.)
- Research Collaboration Center for Biomass and Biorefinery between BRIN and Universitas Padjadjaran, National Research and Innovation Agency, Bandung 40600, Indonesia;
| | - Jajang Sutiawan
- Department of Forest Product, Faculty of Forestry, Universitas Sumatera Utara, Medan 20155, Indonesia;
- Research Center for Biomass and Bioproducts, National Research and Innovation Agency, Cibinong 16911, Indonesia; (M.A.R.L.); (A.S.); (S.S.K.)
| | | | - Seng Hua Lee
- Department of Wood Industry, Faculty of Applied Sciences, Universiti Teknologi MARA (UiTM), Kampus Jengka, Pahang 26400, Malaysia;
| | - Petar Antov
- Faculty of Forest Industry, University of Forestry, 1797 Sofia, Bulgaria;
| | - Lubos Kristak
- Faculty of Wood Sciences and Technology, Technical University in Zvolen, 96001 Zvolen, Slovakia; (L.K.); (R.R.)
| | - Roman Reh
- Faculty of Wood Sciences and Technology, Technical University in Zvolen, 96001 Zvolen, Slovakia; (L.K.); (R.R.)
| | - Efri Mardawati
- Research Collaboration Center for Biomass and Biorefinery between BRIN and Universitas Padjadjaran, National Research and Innovation Agency, Bandung 40600, Indonesia;
- Department of Agro-Industrial Technology, Universitas Padjadjaran, Jatinangor 40600, Indonesia
| | - Adi Santoso
- Research Center for Biomass and Bioproducts, National Research and Innovation Agency, Cibinong 16911, Indonesia; (M.A.R.L.); (A.S.); (S.S.K.)
| | - Sukma Surya Kusumah
- Research Center for Biomass and Bioproducts, National Research and Innovation Agency, Cibinong 16911, Indonesia; (M.A.R.L.); (A.S.); (S.S.K.)
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34
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Yamauchi H, Inayama S, Nakabayashi M, Hayashi S. Systematic Order-Made Synthesis of Sequence-Defined Polyurethanes with Length, Types, and Topologies. ACS Macro Lett 2023; 12:1264-1271. [PMID: 37656889 DOI: 10.1021/acsmacrolett.3c00469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/03/2023]
Abstract
Polyurethanes are industrially and academically important as soft materials. They are conventionally synthesized by a process based on step-growth polymerization; thus, molecular weight and structural control are impossible. However, the development of a synthetic strategy for polyurethanes remains a big challenge in designing soft materials. Herein, we demonstrate a synthetic methodology for generating polyurethanes with selectable lengths and termini characteristics. The multistep synthetic process offered the systematic synthesis of high-molecular weight, regioregular, and α,ω-urethane telechelics. Various oligomers with order-made repeating units revealed the effective length of the polymer properties. To demonstrate the scope of our methodology, it was also applied to the synthesis of block co-oligomers, three-armed star oligomers, and miktoarm star co-oligomers. Thus, our method allows the synthesis of high-molecular-weight oligomers with complete structural and molecular weight control, which is of enormous value to materials science; particularly the study and application of structure-property relationships in polyurethanes.
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Affiliation(s)
- Haruka Yamauchi
- School of Engineering Science, Kochi University of Technology, 185 Tosayamada Miyanokuchi, Kami, Kochi 782-8502, Japan
| | - Syunya Inayama
- School of Engineering Science, Kochi University of Technology, 185 Tosayamada Miyanokuchi, Kami, Kochi 782-8502, Japan
| | - Mahiro Nakabayashi
- School of Engineering Science, Kochi University of Technology, 185 Tosayamada Miyanokuchi, Kami, Kochi 782-8502, Japan
| | - Shotaro Hayashi
- School of Engineering Science, Kochi University of Technology, 185 Tosayamada Miyanokuchi, Kami, Kochi 782-8502, Japan
- Research Center for Molecular Design, Kochi University of Technology, Kami, Kochi 782-8502, Japan
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35
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Luo Y, Geng Z, Zhang W, He J, Yang R. Strategy for Constructing Phosphorus-Based Flame-Retarded Polyurethane Elastomers for Advanced Performance in Long-Term. Polymers (Basel) 2023; 15:3711. [PMID: 37765565 PMCID: PMC10537912 DOI: 10.3390/polym15183711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Revised: 08/30/2023] [Accepted: 09/01/2023] [Indexed: 09/29/2023] Open
Abstract
Polyurethane elastomer (PUE), which is widely used in coatings for construction, transportation, electronics, aerospace, and other fields, has excellent physical properties. However, polyurethane elastomers are flammable, which limits their daily use, so the flame retardancy of polyurethane elastomers is very important. Reactive flame retardants have the advantages of little influence on the physical properties of polymers and low tendency to migrate out. Due to the remarkable needs of non-halogenated flame retardants, phosphorus flame retardant has gradually stood out as the main alternative. In this review, we focus on the fire safety of PUE and provide a detailed overview of the current molecular design and mechanisms of reactive phosphorus-containing, as well as P-N synergistic, flame retardants in PUE. From the structural characteristics, several basic aspects of PUE are overviewed, including thermal performance, combustion performance, and mechanical properties. In addition, the perspectives on the future advancement of phosphorus-containing flame-retarded polyurethane elastomers (PUE) are also discussed. Based on the past research, this study provides prospects for the application of flame-retarded PUE in the fields of self-healing materials, bio-based materials, wearable electronic devices, and solid-state electrolytes.
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Affiliation(s)
| | - Zhishuai Geng
- National Engineering Technology Research Center of Flame Retardant Materials, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Wenchao Zhang
- National Engineering Technology Research Center of Flame Retardant Materials, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, China
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36
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Du J, Wang H, Huang Z, Liu X, Yin X, Wu J, Lin W, Lin X, Yi G. Construction and mechanism study of lignin-based polyurethane with high strength and high self-healing properties. Int J Biol Macromol 2023; 248:125925. [PMID: 37499717 DOI: 10.1016/j.ijbiomac.2023.125925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 07/17/2023] [Accepted: 07/19/2023] [Indexed: 07/29/2023]
Abstract
Lignin is a natural polymer with abundant functional groups with great application prospects in lignin-based polyurethane elastomers with self-healing abilities. In this study, a lignin self-healing polyurethane (PUDA-L) was specially designed using lignin as the raw material of polyurethane, combining lignin with Diels-Alder (DA) bond and hydrogen bonds. The experimental results showed that PUDA-L was prepared with good thermal stability, fatigue resistance, shape memory effect, excellent mechanical strength, and self-healing ability by partially replacing the crosslinking agents with bio-based lignin and hydroxylated modified lignin to increase the hydroxyl content. Polyurethane has a tensile strength of up to 29 MPa and an elongation at break of up to 500 %. The excellent self-healing ability of PUDA-L originates from the internal DA bonds and cross-linked hydrogen bonds. After the dumbbell sample was fused and heated at 130 °C for 4 h, the elastomer could be completely healed, the tensile strength was restored to 29 MPa, and the self-healing efficiency was up to 100 %. The developed PUDA-L elastomer has promising applications in sensors and smart skins.
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Affiliation(s)
- Jiahao Du
- School of Chemical Engineering and Light Industry, Guangdong Laboratory of Chemistry and Fine Chemical Industry Jieyang Center, Guangdong University of Technology, Guangzhou 510006, China
| | - Huan Wang
- School of Chemistry and Chemical Engineering, Guangzhou Key Laboratory of Sensing Materials & Devices, Guangzhou University, Guangzhou 510006, China.
| | - Zhiyi Huang
- School of Chemical Engineering and Light Industry, Guangdong Laboratory of Chemistry and Fine Chemical Industry Jieyang Center, Guangdong University of Technology, Guangzhou 510006, China
| | - Xiaochun Liu
- School of Chemical Engineering and Light Industry, Guangdong Laboratory of Chemistry and Fine Chemical Industry Jieyang Center, Guangdong University of Technology, Guangzhou 510006, China
| | - Xinshan Yin
- School of Chemical Engineering and Light Industry, Guangdong Laboratory of Chemistry and Fine Chemical Industry Jieyang Center, Guangdong University of Technology, Guangzhou 510006, China
| | - Jianxin Wu
- School of Chemical Engineering and Light Industry, Guangdong Laboratory of Chemistry and Fine Chemical Industry Jieyang Center, Guangdong University of Technology, Guangzhou 510006, China
| | - Wenjing Lin
- School of Chemical Engineering and Light Industry, Guangdong Laboratory of Chemistry and Fine Chemical Industry Jieyang Center, Guangdong University of Technology, Guangzhou 510006, China
| | - Xiaofeng Lin
- School of Chemical Engineering and Light Industry, Guangdong Laboratory of Chemistry and Fine Chemical Industry Jieyang Center, Guangdong University of Technology, Guangzhou 510006, China
| | - Guobin Yi
- School of Chemical Engineering and Light Industry, Guangdong Laboratory of Chemistry and Fine Chemical Industry Jieyang Center, Guangdong University of Technology, Guangzhou 510006, China.
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37
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Wang J, Cao Y, Meng QW, Wang Y, Shi H, Feng B, Huang Y, Sun Q, He L. Catalysis of Synergistic Reactions by Host-Guest Assemblies: Reductive Carbonylation of Nitrobenzenes. JACS AU 2023; 3:2166-2173. [PMID: 37654585 PMCID: PMC10466335 DOI: 10.1021/jacsau.3c00233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 07/07/2023] [Accepted: 07/07/2023] [Indexed: 09/02/2023]
Abstract
Numerous chemical transformations require two or more catalytically active sites that act in a concerted manner; nevertheless, designing heterogeneous catalysts with such multiple functionalities remains an overwhelming challenge. Herein, it is shown that by the integration of acidic flexible polymers and Pd-metallated covalent organic framework (COF) hosts, the merits of both catalytically active sites can be utilized to realize heterogeneous synergistic catalysis that are active in the conversion of nitrobenzenes to carbamates via reductive carbonylation. The concentrated catalytically active species in the nanospace force two catalytic components into proximity, thereby enhancing the cooperativity between the acidic species and Pd species to facilitate synergistic catalysis. The resulting host-guest assemblies constitute more efficient systems than the corresponding physical mixtures and the homogeneous counterparts. Furthermore, this system enables easy access to a family of important derivatives such as herbicides and polyurethane monomers and can be integrated with other COFs, showing promising results. This study utilizes host-guest assembly as a versatile tool for the fabrication of multifunctional catalysts with enhanced cooperativity between different catalytic species.
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Affiliation(s)
- Jinhui Wang
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy
of Sciences, Lanzhou 730000, China
- University
of Chinese Academy of Sciences, Beijing 100049, China
| | - Yanwei Cao
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy
of Sciences, Lanzhou 730000, China
| | - Qing-Wei Meng
- Zhejiang
Provincial Key Laboratory of Advanced Chemical Engineering Manufacture
Technology, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Yaowei Wang
- Shandong
Chambroad Petrochemicals Co., Ltd, Binzhou 256500, China
| | - Huibing Shi
- Shandong
Chambroad Petrochemicals Co., Ltd, Binzhou 256500, China
| | - Baolin Feng
- Shandong
Chambroad Petrochemicals Co., Ltd, Binzhou 256500, China
| | - Yang Huang
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy
of Sciences, Lanzhou 730000, China
| | - Qi Sun
- Zhejiang
Provincial Key Laboratory of Advanced Chemical Engineering Manufacture
Technology, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Lin He
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy
of Sciences, Lanzhou 730000, China
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38
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Liu LY, Wan X, Chen S, Boonthamrongkit P, Sipponen M, Renneckar S. Solventless Amination of Lignin and Natural Phenolics using 2-Oxazolidinone. CHEMSUSCHEM 2023; 16:e202300276. [PMID: 36999517 DOI: 10.1002/cssc.202300276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 03/28/2023] [Indexed: 06/17/2023]
Abstract
Reactive amine compounds are critical for a vast array of useful chemicals in society, yet a limited number of them are derived from renewable resources. This study developed an efficient route to obtain aminated building blocks from phenolic resources derived from nature, such as lignin and tannic acid, for enhancing their utility in applications such as epoxy resins, nylons, polyurethanes, and other polymeric materials. The reaction utilized a carbon storage compound, 2-oxazolidinone as a solvent and as a reagent circumventing the need of hazardous chemistry of conventional amination routes such as those involving formaldehyde. Both free acids and hindered phenolics were readily converted into aminoethyl derivatives resulting in aromatics with primary amine functionality. The aminated compounds, with the potential for enhanced reactivity, can pave the way toward more advanced renewable building blocks.
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Affiliation(s)
- Li-Yang Liu
- Advanced Renewable Materials Lab, Department of Wood Science, The University of British Columbia 2900-2424, Main Mall, V6T 1Z4, Vancouver, BC, Canada
- Sustainable Materials Chemistry, Department of Materials and Environmental Chemistry, Stockholm University, Svante Arrhenius väg 16 C, 11418, Stockholm, Sweden
| | - Xue Wan
- Advanced Renewable Materials Lab, Department of Wood Science, The University of British Columbia 2900-2424, Main Mall, V6T 1Z4, Vancouver, BC, Canada
| | - Siwei Chen
- Advanced Renewable Materials Lab, Department of Wood Science, The University of British Columbia 2900-2424, Main Mall, V6T 1Z4, Vancouver, BC, Canada
| | - Panpipat Boonthamrongkit
- Advanced Renewable Materials Lab, Department of Wood Science, The University of British Columbia 2900-2424, Main Mall, V6T 1Z4, Vancouver, BC, Canada
| | - Mika Sipponen
- Sustainable Materials Chemistry, Department of Materials and Environmental Chemistry, Stockholm University, Svante Arrhenius väg 16 C, 11418, Stockholm, Sweden
| | - Scott Renneckar
- Advanced Renewable Materials Lab, Department of Wood Science, The University of British Columbia 2900-2424, Main Mall, V6T 1Z4, Vancouver, BC, Canada
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39
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Slabejová G, Vidholdová Z, Šmidriaková M. Effect of Two Different Ageing Exposures on the Colour Stability of Transparent Polyurethane Finishing. Polymers (Basel) 2023; 15:3313. [PMID: 37571207 PMCID: PMC10422424 DOI: 10.3390/polym15153313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 07/27/2023] [Accepted: 08/03/2023] [Indexed: 08/13/2023] Open
Abstract
This paper deals with the influence of dark and light exposure on the colour change of a transparent two-component polyurethane surface finish. The surface finish with polyacrylic and aldehyde resin was applied to the surfaces of untreated and hydrothermally treated European beech, alder, Norway maple, and Paper birch wood. The test specimens were deposited indoors for 60 days. The colour values (lightness L*, redness + a*, yellowness + b*, chroma C*, hue angle h°) were expressed in the CIELAB system. The results showed that the colour difference of the finish surfaces of all hydrothermally treated wood species was 27-50% lower after the dark than when exposed to light. In the case of finished untreated wood, the colour difference was 51-73% lower after the dark than light exposure. Only the finished untreated and hydrothermally treated Norway maple wood surfaces showed similar and significant changes after both dark and light exposure. The lower value of the colour difference of the finished hydrothermally treated wood was due to the fact that steaming wood with saturated water steam has a positive effect on the overall colour stability of the finish and partial resistance to the initiation of photolytic reactions caused by light.
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Affiliation(s)
- Gabriela Slabejová
- Faculty of Wood Sciences and Technology, Department of Furniture and Wood Products, Technical University in Zvolen, 960 01 Zvolen, Slovakia; (G.S.); (M.Š.)
| | - Zuzana Vidholdová
- Faculty of Wood Sciences and Technology, Department of Wood Technology, Technical University in Zvolen, Masaryka 24, 960 01 Zvolen, Slovakia
| | - Mária Šmidriaková
- Faculty of Wood Sciences and Technology, Department of Furniture and Wood Products, Technical University in Zvolen, 960 01 Zvolen, Slovakia; (G.S.); (M.Š.)
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40
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Antonino L, Sumerskii I, Potthast A, Rosenau T, Felisberti MI, dos Santos DJ. Lignin-Based Polyurethanes from the Blocked Isocyanate Approach: Synthesis and Characterization. ACS OMEGA 2023; 8:27621-27633. [PMID: 37546644 PMCID: PMC10398858 DOI: 10.1021/acsomega.3c03422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 07/05/2023] [Indexed: 08/08/2023]
Abstract
Lignin, the world's second most abundant biopolymer, has been investigated as a precursor of polyurethanes due to its high availability and large amount of hydroxyls present in its structure. Lignin-based polyurethanes (LPUs) are usually synthesized from the reaction between lignin, previously modified or not, and diisocyanates. In the present work, LPUs were prepared, for the first time, using the blocked isocyanate approach. For that, unmodified and hydroxypropylated Kraft lignins were reacted with 4,4'-methylene diphenyl diisocyanate in the presence of diisopropylamine (blocking agent). Castor oil was employed as a second polyol. The chemical modification was confirmed by 31P nuclear magnetic resonance (31P NMR) analysis, and the structure of both lignins was elucidated by a bidimensional NMR technique. The LPUs' prepolymerization kinetics was investigated by temperature-modulated optical refractometry and Fourier-transform infrared spectroscopy. The positive effect of hydroxypropylation on the reactivity of the Kraft lignin was verified. The structure of LPU prepolymers was accessed by bidimensional NMR. The formation of hindered urea-terminated LPU prepolymers was confirmed. From the results, the feasibility of the blocked isocyanate approach to obtain LPUs was proven. Lastly, single-lap shear tests were performed and revealed the potential of LPU prepolymers as monocomponent adhesives.
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Affiliation(s)
- Leonardo
D. Antonino
- Nanoscience
and Advanced Materials Graduate Program (PPG-nano), Federal University of ABC (UFABC), Santo André 09210-580, Brazil
| | - Ivan Sumerskii
- Department
of Chemistry, Division of Chemistry of Renewable Resources, University of Natural Resources and Life Sciences
Vienna (BOKU), Konrad-Lorenz-Strasse 24, 3430 Tulln an der Donau, Austria
| | - Antje Potthast
- Department
of Chemistry, Division of Chemistry of Renewable Resources, University of Natural Resources and Life Sciences
Vienna (BOKU), Konrad-Lorenz-Strasse 24, 3430 Tulln an der Donau, Austria
| | - Thomas Rosenau
- Department
of Chemistry, Division of Chemistry of Renewable Resources, University of Natural Resources and Life Sciences
Vienna (BOKU), Konrad-Lorenz-Strasse 24, 3430 Tulln an der Donau, Austria
| | - Maria Isabel Felisberti
- Institute
of Chemistry, University of Campinas (UNICAMP), P.O. Box 6154, Campinas 13083-970, Brazil
| | - Demetrio J. dos Santos
- Nanoscience
and Advanced Materials Graduate Program (PPG-nano), Federal University of ABC (UFABC), Santo André 09210-580, Brazil
- Center
of Engineering, Modeling and Applied Social Sciences, Federal University of ABC (UFABC), Santo André 09210-580, Brazil
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41
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Lin YH, Chen-Huang YL, Chang ACC. Vitrimer synthesis from recycled polyurethane gylcolysate. Front Bioeng Biotechnol 2023; 11:1209294. [PMID: 37555078 PMCID: PMC10405921 DOI: 10.3389/fbioe.2023.1209294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 07/07/2023] [Indexed: 08/10/2023] Open
Abstract
Polyurethanes and plastics have become ubiquitous in modern society, finding use in a wide variety of applications such as clothing, automobiles, and shoes. While these materials provide numerous benefits to human life, their persistence in the environment has caused ecological imbalances. Therefore, new processes are needed to make these materials more sustainable and re-usable. In 2011, Ludwik Leibler introduced a new class of covalent adaptable network (CAN) polymers called Vitrimers. Vitrimers possess self-repairing properties and are capable of being reprocessed due to dynamic exchange or breaking/recombination of covalent bonds, similar to thermoset materials. This study explores the synthesis of Vitrimers using waste polyurethane or plastics as feedstock. The raw materials were glycolysed to obtain the glycolysate, which was then used as a reagent for the Vitrimers synthesis. The main objective of this study was to achieve the maximum self-repairable rate of the prepared sample. The Taguchi orthogonal analysis was employed to guide the experiments. The optimized experimental conditions for polyurethane glycolysis were determined to be under ethylene glycol and catalyzed by sodium hydroxide at 180°C for 1 h, resulting in the highest hydroxyl concentration in the glycolysate. In the second stage of the experiment, the ratio of hexamethylene diisocyanate (HDI) to solvent was set to 2, HDI trimer to solvent was 2, and PGE/glycolysate was 0.5, with equal amounts of PEG and glycolysate used as the solvent. The reaction was carried out at 80°C for 1 h, achieving a self-repair ability of 47.5% in the prepared sample. The results of this study show that waste polyurethane or plastics can be effectively recycled and transformed into vitrimers with self-repairing properties. The use of glycolysis as a feedstock is a promising method for the sustainable recycling of polyurethane waste. The Taguchi orthogonal analysis is an effective approach for optimizing experimental conditions and improving the reproducibility of the results.
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Affiliation(s)
- Yu-Hsuan Lin
- Chemical Engineering Department, Feng Chia University, Taichung, Taiwan
| | | | - Alex C.-C. Chang
- Chemical Engineering Department, Feng Chia University, Taichung, Taiwan
- Green Energy and Biotechnology Industry Research Center, Feng Chia University, Taichung, Taiwan
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42
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Nugroho WT, Dong Y, Pramanik A, Zhang Z, Ramakrishna S. Co-Influence of Nanofiller Content and 3D Printing Parameters on Mechanical Properties of Thermoplastic Polyurethane (TPU)/Halloysite Nanotube (HNT) Nanocomposites. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:1975. [PMID: 37446491 DOI: 10.3390/nano13131975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Revised: 06/25/2023] [Accepted: 06/26/2023] [Indexed: 07/15/2023]
Abstract
Thermoplastic polyurethane (TPU) belongs to a polyurethane family that possesses an elongation much higher than 300%, despite having low mechanical strength, which can be overcome by incorporating clay-based halloysite nanotubes (HNTs) as additives to manufacture TPU/HNT nanocomposites. This paper focuses on the co-influence of HNT content and 3D printing parameters on the mechanical properties of 3D printed TPU/HNT nanocomposites in terms of tensile properties, hardness, and abrasion resistance via fused deposition modelling (FDM). The optimum factor-level combination for different responses was determined with the aid of robust statistical Taguchi design of experiments (DoEs). Material characterisation was also carried out to evaluate the surface morphology, nanofiller dispersion, chemical structure, thermal stability, and phase behaviour corresponding to the DoE results obtained. It is evidently shown that HNT level and infill density play a significant role in impacting mechanical properties of 3D-printed TPU/HNT nanocomposites.
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Affiliation(s)
- Wendy Triadji Nugroho
- School of Civil and Mechanical Engineering, Curtin University, P.O. Box U1987, Perth, WA 6845, Australia
| | - Yu Dong
- School of Civil and Mechanical Engineering, Curtin University, P.O. Box U1987, Perth, WA 6845, Australia
| | - Alokesh Pramanik
- School of Civil and Mechanical Engineering, Curtin University, P.O. Box U1987, Perth, WA 6845, Australia
| | - Zhixiao Zhang
- School of Materials Science and Engineering, Hebei University of Engineering, Handan 056038, China
| | - Seeram Ramakrishna
- Department of Mechanical Engineering, National University of Singapore, Singapore 117575, Singapore
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43
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Navarro M, Holzapfel M, Campos J. A Cavity-Shaped Gold(I) Fragment Enables CO 2 Insertion into Au-OH and Au-NH Bonds. Inorg Chem 2023. [PMID: 37367828 DOI: 10.1021/acs.inorgchem.3c00751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/28/2023]
Abstract
A cavity-shaped linear gold(I) hydroxide complex acts as a platform to access unusual gold monomeric species. Notably, this sterically crowded gold fragment enables the trapping of CO2 via insertion into Au-OH and Au-NH bonds to form unprecedented monomeric gold(I) carbonate and carbamate complexes. In addition, we succeeded in the identification of the first gold(I) terminal hydride bearing a phosphine ligand. The basic nature of the Au(I)-hydroxide moiety is also explored through the reactivity toward other molecules containing acidic protons such as trifluoromethanesulfonic acid and terminal alkynes.
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Affiliation(s)
- Miquel Navarro
- Instituto de Investigaciones Químicas (IIQ), Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Consejo Superior de Investigaciones Científicas (CSIC) and University of Sevilla, Sevilla 41092, Spain
| | - Markus Holzapfel
- Instituto de Investigaciones Químicas (IIQ), Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Consejo Superior de Investigaciones Científicas (CSIC) and University of Sevilla, Sevilla 41092, Spain
| | - Jesús Campos
- Instituto de Investigaciones Químicas (IIQ), Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Consejo Superior de Investigaciones Científicas (CSIC) and University of Sevilla, Sevilla 41092, Spain
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44
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Ahn W, Triana JF, Recabal F, Herrera F, Simpkins BS. Modification of ground-state chemical reactivity via light-matter coherence in infrared cavities. Science 2023; 380:1165-1168. [PMID: 37319215 DOI: 10.1126/science.ade7147] [Citation(s) in RCA: 34] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Accepted: 05/12/2023] [Indexed: 06/17/2023]
Abstract
Reaction-rate modifications for chemical processes due to strong coupling between reactant molecular vibrations and the cavity vacuum have been reported; however, no currently accepted mechanisms explain these observations. In this work, reaction-rate constants were extracted from evolving cavity transmission spectra, revealing resonant suppression of the intracavity reaction rate for alcoholysis of phenyl isocyanate with cyclohexanol. We observed up to an 80% suppression of the rate by tuning cavity modes to be resonant with the reactant isocyanate (NCO) stretch, the product carbonyl (CO) stretch, and cooperative reactant-solvent modes (CH). These results were interpreted using an open quantum system model that predicted resonant modifications of the vibrational distribution of reactants from canonical statistics as a result of light-matter quantum coherences, suggesting links to explore between chemistry and quantum science.
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Affiliation(s)
- Wonmi Ahn
- UNAM - National Nanotechnology Research Center and Institute of Materials Science and Nanotechnology, Bilkent University, Ankara, Turkey
| | - Johan F Triana
- Department of Physics, Universidad de Santiago de Chile, Santiago, Chile
| | - Felipe Recabal
- Department of Physics, Universidad de Santiago de Chile, Santiago, Chile
| | - Felipe Herrera
- Department of Physics, Universidad de Santiago de Chile, Santiago, Chile
- Millennium Institute for Research in Optics (MIRO), Concepción, Chile
| | - Blake S Simpkins
- Chemistry Division, US Naval Research Laboratory, Washington, DC, USA
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45
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Yan T, Balzer AH, Herbert KM, Epps TH, Korley LTJ. Circularity in polymers: addressing performance and sustainability challenges using dynamic covalent chemistries. Chem Sci 2023; 14:5243-5265. [PMID: 37234906 PMCID: PMC10208058 DOI: 10.1039/d3sc00551h] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 04/14/2023] [Indexed: 05/28/2023] Open
Abstract
The circularity of current and future polymeric materials is a major focus of fundamental and applied research, as undesirable end-of-life outcomes and waste accumulation are global problems that impact our society. The recycling or repurposing of thermoplastics and thermosets is an attractive solution to these issues, yet both options are encumbered by poor property retention upon reuse, along with heterogeneities in common waste streams that limit property optimization. Dynamic covalent chemistry, when applied to polymeric materials, enables the targeted design of reversible bonds that can be tailored to specific reprocessing conditions to help address conventional recycling challenges. In this review, we highlight the key features of several dynamic covalent chemistries that can promote closed-loop recyclability and we discuss recent synthetic progress towards incorporating these chemistries into new polymers and existing commodity plastics. Next, we outline how dynamic covalent bonds and polymer network structure influence thermomechanical properties related to application and recyclability, with a focus on predictive physical models that describe network rearrangement. Finally, we examine the potential economic and environmental impacts of dynamic covalent polymeric materials in closed-loop processing using elements derived from techno-economic analysis and life-cycle assessment, including minimum selling prices and greenhouse gas emissions. Throughout each section, we discuss interdisciplinary obstacles that hinder the widespread adoption of dynamic polymers and present opportunities and new directions toward the realization of circularity in polymeric materials.
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Affiliation(s)
- Tianwei Yan
- Department of Chemical & Biomolecular Engineering, University of Delaware Newark 19716 Delaware USA
- Center for Plastics Innovation (CPI), University of Delaware Newark 19716 Delaware USA
| | - Alex H Balzer
- Department of Chemical & Biomolecular Engineering, University of Delaware Newark 19716 Delaware USA
- Center for Plastics Innovation (CPI), University of Delaware Newark 19716 Delaware USA
| | - Katie M Herbert
- Center for Plastics Innovation (CPI), University of Delaware Newark 19716 Delaware USA
| | - Thomas H Epps
- Department of Chemical & Biomolecular Engineering, University of Delaware Newark 19716 Delaware USA
- Center for Plastics Innovation (CPI), University of Delaware Newark 19716 Delaware USA
- Department of Materials Science and Engineering, University of Delaware Newark 19716 Delaware USA
- Center for Research in Soft matter and Polymers (CRiSP), University of Delaware Newark 19716 Delaware USA
| | - LaShanda T J Korley
- Department of Chemical & Biomolecular Engineering, University of Delaware Newark 19716 Delaware USA
- Center for Plastics Innovation (CPI), University of Delaware Newark 19716 Delaware USA
- Department of Materials Science and Engineering, University of Delaware Newark 19716 Delaware USA
- Center for Research in Soft matter and Polymers (CRiSP), University of Delaware Newark 19716 Delaware USA
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46
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Smit AT, Bellinetto E, Dezaire T, Boumezgane O, Riddell LA, Turri S, Hoek M, Bruijnincx PCA, Griffini G. Tuning the Properties of Biobased PU Coatings via Selective Lignin Fractionation and Partial Depolymerization. ACS SUSTAINABLE CHEMISTRY & ENGINEERING 2023; 11:7193-7202. [PMID: 37180028 PMCID: PMC10171370 DOI: 10.1021/acssuschemeng.3c00889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 03/22/2023] [Indexed: 05/15/2023]
Abstract
Polyurethane (PU) coatings with high lignin content and tunable properties were made using a combination of fractionation and partial catalytic depolymerization as a novel strategy to tailor lignin molar mass and hydroxyl group reactivity, the key parameters for use in PU coatings. Acetone organosolv lignin obtained from pilot-scale fractionation of beech wood chips was processed at the kilogram scale to produce lignin fractions with specific molar mass ranges (Mw 1000-6000 g/mol) and reduced polydispersity. Aliphatic hydroxyl groups were distributed relatively evenly over the lignin fractions, allowing detailed study of the correlation between lignin molar mass and hydroxyl group reactivity using an aliphatic polyisocyanate linker. As expected, the high molar mass fractions exhibited low cross-linking reactivity, yielding rigid coatings with a high glass transition temperature (Tg). The lower Mw fractions showed increased lignin reactivity, extent of cross-linking, and gave coatings with enhanced flexibility and lower Tg. Lignin properties could be further tailored by lignin partial depolymerization by reduction (PDR) of the beech wood lignin and its high molar mass fractions; excellent translation of the PDR process was observed from laboratory to the pilot scale necessary for coating applications in prospective industrial scenarios. Lignin depolymerization significantly improved lignin reactivity, and coatings produced from PDR lignin showed the lowest Tg values and highest coating flexibility. Overall, this study provides a powerful strategy for the production of PU coatings with tailored properties and high (>90%) biomass content, paving the path to the development of fully green and circular PU materials.
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Affiliation(s)
- Arjan T. Smit
- The
Netherlands Organisation for Applied Scientific Research (TNO), unit
Energy Transition, Biobased & Circular Technologies group, P.O. Box 1, 1755 ZG Petten, The Netherlands
- Organic
Chemistry and Catalysis, Institute for Sustainable and Circular Chemistry, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Emanuela Bellinetto
- Department
of Chemistry, Materials and Chemical Engineering “Giulio Natta”, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy
| | - Thomas Dezaire
- Organic
Chemistry and Catalysis, Institute for Sustainable and Circular Chemistry, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Oussama Boumezgane
- Department
of Chemistry, Materials and Chemical Engineering “Giulio Natta”, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy
| | - Luke A. Riddell
- Organic
Chemistry and Catalysis, Institute for Sustainable and Circular Chemistry, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Stefano Turri
- Department
of Chemistry, Materials and Chemical Engineering “Giulio Natta”, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy
| | - Michiel Hoek
- The
Netherlands Organisation for Applied Scientific Research (TNO), unit
Energy Transition, Biobased & Circular Technologies group, P.O. Box 1, 1755 ZG Petten, The Netherlands
| | - Pieter C. A. Bruijnincx
- Organic
Chemistry and Catalysis, Institute for Sustainable and Circular Chemistry, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Gianmarco Griffini
- Department
of Chemistry, Materials and Chemical Engineering “Giulio Natta”, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy
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47
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de Heer Kloots MHP, Schoustra SK, Dijksman JA, Smulders MMJ. Phase separation in supramolecular and covalent adaptable networks. SOFT MATTER 2023; 19:2857-2877. [PMID: 37060135 PMCID: PMC10131172 DOI: 10.1039/d3sm00047h] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Phase separation phenomena have been studied widely in the field of polymer science, and were recently also reported for dynamic polymer networks (DPNs). The mechanisms of phase separation in dynamic polymer networks are of particular interest as the reversible nature of the network can participate in the structuring of the micro- and macroscale domains. In this review, we highlight the underlying mechanisms of phase separation in dynamic polymer networks, distinguishing between supramolecular polymer networks and covalent adaptable networks (CANs). Also, we address the synergistic effects between phase separation and reversible bond exchange. We furthermore discuss the effects of phase separation on the material properties, and how this knowledge can be used to enhance and tune material properties.
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Affiliation(s)
- Martijn H P de Heer Kloots
- Laboratory of Organic Chemistry, Wageningen University, Stippeneng 4, 6708 WE Wageningen, The Netherlands.
- Physical Chemistry and Soft Matter, Wageningen University, Stippeneng 4, 6708 WE Wageningen, The Netherlands
| | - Sybren K Schoustra
- Laboratory of Organic Chemistry, Wageningen University, Stippeneng 4, 6708 WE Wageningen, The Netherlands.
| | - Joshua A Dijksman
- Physical Chemistry and Soft Matter, Wageningen University, Stippeneng 4, 6708 WE Wageningen, The Netherlands
- Van der Waals-Zeeman Institute, Institute of Physics, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands.
| | - Maarten M J Smulders
- Laboratory of Organic Chemistry, Wageningen University, Stippeneng 4, 6708 WE Wageningen, The Netherlands.
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48
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Mai J, Chan CM, Laycock B, Pratt S. Understanding the Reaction of Hydroxy-Terminated Poly(3-hydroxybutyrate- co-3-hydroxyvalerate) (PHBV) Random Copolymers with a Monoisocyanate. Macromolecules 2023. [DOI: 10.1021/acs.macromol.2c02513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/15/2023]
Affiliation(s)
- Jingjing Mai
- School of Chemical Engineering, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Clement Matthew Chan
- School of Chemical Engineering, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Bronwyn Laycock
- School of Chemical Engineering, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Steven Pratt
- School of Chemical Engineering, The University of Queensland, Brisbane, Queensland 4072, Australia
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49
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Hayes G, Laurel M, MacKinnon D, Zhao T, Houck HA, Becer CR. Polymers without Petrochemicals: Sustainable Routes to Conventional Monomers. Chem Rev 2023; 123:2609-2734. [PMID: 36227737 PMCID: PMC9999446 DOI: 10.1021/acs.chemrev.2c00354] [Citation(s) in RCA: 23] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Access to a wide range of plastic materials has been rationalized by the increased demand from growing populations and the development of high-throughput production systems. Plastic materials at low costs with reliable properties have been utilized in many everyday products. Multibillion-dollar companies are established around these plastic materials, and each polymer takes years to optimize, secure intellectual property, comply with the regulatory bodies such as the Registration, Evaluation, Authorisation and Restriction of Chemicals and the Environmental Protection Agency and develop consumer confidence. Therefore, developing a fully sustainable new plastic material with even a slightly different chemical structure is a costly and long process. Hence, the production of the common plastic materials with exactly the same chemical structures that does not require any new registration processes better reflects the reality of how to address the critical future of sustainable plastics. In this review, we have highlighted the very recent examples on the synthesis of common monomers using chemicals from sustainable feedstocks that can be used as a like-for-like substitute to prepare conventional petrochemical-free thermoplastics.
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Affiliation(s)
- Graham Hayes
- Department of Chemistry, University of Warwick, CV4 7ALCoventry, United Kingdom
| | - Matthew Laurel
- Department of Chemistry, University of Warwick, CV4 7ALCoventry, United Kingdom
| | - Dan MacKinnon
- Department of Chemistry, University of Warwick, CV4 7ALCoventry, United Kingdom
| | - Tieshuai Zhao
- Department of Chemistry, University of Warwick, CV4 7ALCoventry, United Kingdom
| | - Hannes A Houck
- Department of Chemistry, University of Warwick, CV4 7ALCoventry, United Kingdom.,Institute of Advanced Study, University of Warwick, CV4 7ALCoventry, United Kingdom
| | - C Remzi Becer
- Department of Chemistry, University of Warwick, CV4 7ALCoventry, United Kingdom
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50
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Wu Y, Wang T, Gao J, Zhang L, Fay JDB, Hirth S, Hankett J, Chen Z. Molecular Behavior of 1K Polyurethane Adhesive at Buried Interfaces: Plasma Treatment, Annealing, and Adhesion. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:3273-3285. [PMID: 36808974 DOI: 10.1021/acs.langmuir.2c03084] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
One-part (1K) polyurethane (PU) adhesive has excellent bulk strength and environmental resistance. It is therefore widely used in many fields, such as construction, transportation, and flexible lamination. However, when contacting non-polar polymer materials, the poor adhesion of 1K PU adhesive may not be able to support its outdoor applications. To solve this problem, plasma treatment of the non-polar polymer surface has been utilized to improve adhesion between the polymer and 1K PU adhesive. The detailed mechanisms of adhesion enhancement of the 1K PU adhesive caused by plasma treatment on polymer substrates have not been studied extensively because adhesion is a property of buried interfaces which are difficult to probe. In this study, sum frequency generation (SFG) vibrational spectroscopy was used to investigate the buried PU/polypropylene (PP) interfaces in situ nondestructively. Fourier-transform infrared spectroscopy, the X-ray diffraction technique, and adhesion tests were used as supplemental methods to SFG in the study. The 1K PU adhesive is a moisture-curing adhesive and usually needs several days to be fully cured. Here, time-dependent SFG experiments were conducted to monitor the molecular behaviors at the buried 1K PU adhesive/PP interfaces during the curing process. It was found that the PU adhesives underwent rearrangement during the curing process with functional groups gradually becoming ordered at the interface. Stronger adhesion between the plasma-treated PP substrate and the 1K PU adhesive was observed, which was achieved by the interfacial chemical reactions and a more rigid interface. Annealing the samples increased the reaction speed and enhanced the bulk PU strength with higher crystallinity. In this research, molecular mechanisms of adhesion enhancement of the 1K PU adhesive caused by the plasma treatment on PP and by annealing the PU/PP samples were elucidated.
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Affiliation(s)
- Yuchen Wu
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States
- Department of Macromolecular Science and Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Tianle Wang
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Jinpeng Gao
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Lu Zhang
- BASF Corporation, 1609 Biddle Avenue, Wyandotte, Michigan 48192, United States
| | - Jonathan D B Fay
- BASF Corporation, 1609 Biddle Avenue, Wyandotte, Michigan 48192, United States
| | - Sabine Hirth
- BASF SE, RAA/OS-B007, Carl-Bosch-Strasse 38, 67056 Ludwigshafen am Rhein, Germany
| | - Jeanne Hankett
- BASF Corporation, 1609 Biddle Avenue, Wyandotte, Michigan 48192, United States
| | - Zhan Chen
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States
- Department of Macromolecular Science and Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
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