1
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Carlin M, Kaur J, Ciobanu DZ, Song Z, Olsson M, Totu T, Gupta G, Peng G, González VJ, Janica I, Pozo VF, Chortarea S, Buljan M, Buerki-Thurnherr T, Rio Castillo AED, Thorat SB, Bonaccorso F, Tubaro A, Vazquez E, Prato M, Armirotti A, Wick P, Bianco A, Fadeel B, Pelin M. Hazard assessment of hexagonal boron nitride and hexagonal boron nitride reinforced thermoplastic polyurethane composites using human skin and lung cells. JOURNAL OF HAZARDOUS MATERIALS 2024; 473:134686. [PMID: 38788582 DOI: 10.1016/j.jhazmat.2024.134686] [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: 03/25/2024] [Revised: 05/14/2024] [Accepted: 05/20/2024] [Indexed: 05/26/2024]
Abstract
Hexagonal boron nitride (hBN) is an emerging two-dimensional material attracting considerable attention in the industrial sector given its innovative physicochemical properties. Potential risks are associated mainly with occupational exposure where inhalation and skin contact are the most relevant exposure routes for workers. Here we aimed at characterizing the effects induced by composites of thermoplastic polyurethane (TPU) and hBN, using immortalized HaCaT skin keratinocytes and BEAS-2B bronchial epithelial cells. The composite was abraded using a Taber® rotary abraser and abraded TPU and TPU-hBN were also subjected to photo-Fenton-mediated degradation mimicking potential weathering across the product life cycle. Cells were exposed to the materials for 24 h (acute exposure) or twice per week for 4 weeks (chronic exposure) and evaluated with respect to material internalization, cytotoxicity, and proinflammatory cytokine secretion. Additionally, comprehensive mass spectrometry-based proteomics and metabolomics (secretomics) analyses were performed. Overall, despite evidence of cellular uptake of the material, no significant cellular and/or protein expression profiles alterations were observed after acute or chronic exposure of HaCaT or BEAS-2B cells, identifying only few pro-inflammatory proteins. Similar results were obtained for the degraded materials. These results support the determination of hazard profiles associated with cutaneous and pulmonary hBN-reinforced polymer composites exposure.
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Affiliation(s)
- Michela Carlin
- Department of Life Sciences, University of Trieste, Trieste, Italy
| | - Jasreen Kaur
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | | | - Zhengmei Song
- CNRS, Immunology, Immunopathology and Therapeutic Chemistry, UPR3572, University of Strasbourg, ISIS, 67000 Strasbourg, France
| | - Magnus Olsson
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Tiberiu Totu
- Laboratory for Particles-Biology Interactions, Federal Laboratory for Materials Science and Technology, (EMPA), St. Gallen, Switzerland; Swiss Institute of Bioinformatics (SIB), Lausanne, Switzerland; Department of Health Sciences and Technology, Eidgenössische Technische Hochschule Zürich (ETH), Zurich, Switzerland
| | - Govind Gupta
- Laboratory for Particles-Biology Interactions, Federal Laboratory for Materials Science and Technology, (EMPA), St. Gallen, Switzerland
| | - Guotao Peng
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Viviana Jehová González
- Regional Institute of Applied Scientific Research (IRICA), University of Castilla-La Mancha, Ciudad Real, Spain
| | - Iwona Janica
- CNRS, Immunology, Immunopathology and Therapeutic Chemistry, UPR3572, University of Strasbourg, ISIS, 67000 Strasbourg, France
| | - Victor Fuster Pozo
- Laboratory for Particles-Biology Interactions, Federal Laboratory for Materials Science and Technology, (EMPA), St. Gallen, Switzerland
| | - Savvina Chortarea
- Laboratory for Particles-Biology Interactions, Federal Laboratory for Materials Science and Technology, (EMPA), St. Gallen, Switzerland
| | - Marija Buljan
- Laboratory for Particles-Biology Interactions, Federal Laboratory for Materials Science and Technology, (EMPA), St. Gallen, Switzerland; Swiss Institute of Bioinformatics (SIB), Lausanne, Switzerland
| | - Tina Buerki-Thurnherr
- Laboratory for Particles-Biology Interactions, Federal Laboratory for Materials Science and Technology, (EMPA), St. Gallen, Switzerland
| | | | | | | | - Aurelia Tubaro
- Department of Life Sciences, University of Trieste, Trieste, Italy
| | - Ester Vazquez
- Regional Institute of Applied Scientific Research (IRICA), University of Castilla-La Mancha, Ciudad Real, Spain; Department of Organic Chemistry, Faculty of Science and Chemistry Technologies, University of Castilla-La Mancha, Ciudad Real, Spain
| | - Maurizio Prato
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Trieste, Italy; Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Donostia-San Sebastian, Spain; Basque Foundation for Science (IKERBASQUE), Bilbao, Spain
| | - Andrea Armirotti
- Analytical Chemistry Facility, Italian Institute of Technology, Genoa, Italy
| | - Peter Wick
- Laboratory for Particles-Biology Interactions, Federal Laboratory for Materials Science and Technology, (EMPA), St. Gallen, Switzerland
| | - Alberto Bianco
- CNRS, Immunology, Immunopathology and Therapeutic Chemistry, UPR3572, University of Strasbourg, ISIS, 67000 Strasbourg, France.
| | - Bengt Fadeel
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.
| | - Marco Pelin
- Department of Life Sciences, University of Trieste, Trieste, Italy.
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2
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Tawfilas M, Bartolini Torres G, Lorenzi R, Saibene M, Mauri M, Simonutti R. Transparent and High-Refractive-Index Titanium Dioxide/Thermoplastic Polyurethane Nanocomposites. ACS OMEGA 2024; 9:29339-29349. [PMID: 39005776 PMCID: PMC11238196 DOI: 10.1021/acsomega.4c01053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 05/02/2024] [Accepted: 05/27/2024] [Indexed: 07/16/2024]
Abstract
Transparent nanocomposite films made of surface-modified titanium dioxide nanoparticles and thermoplastic polyurethane are prepared via film casting approach showing enhanced refractive indexes and mechanical properties. Two different sets of composites were prepared up to 37.5 wt % of inorganic nanoparticles with a diameter <15 nm, one set using particles capped only with oleic acid and a second one with a bimodal system layer made of oleic acid and mPEO-5000 as coating agents. All of the composites show significantly enhanced refractive index and mechanical properties than the neat polymeric matrix. The transparency of nanocomposite films shows the excellent dispersion of the inorganic nanoparticles in the polymeric matrix avoiding aggregation and precipitation phenomena. Our study provides a facile and feasible route to produce transparent nanocomposite films with tunable mechanical properties and high refractive indices for various applications.
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Affiliation(s)
- Massimo Tawfilas
- Department of Materials Science, University of Milano-Bicocca, Via Roberto Cozzi 55, 20125 Milano, Italy
| | - Gianluca Bartolini Torres
- Department of Materials Science, University of Milano-Bicocca, Via Roberto Cozzi 55, 20125 Milano, Italy
| | - Roberto Lorenzi
- Department of Materials Science, University of Milano-Bicocca, Via Roberto Cozzi 55, 20125 Milano, Italy
| | - Melissa Saibene
- Piattaforma
di Microscopia, University of Milano-Bicocca, 20126 Milano, Italy
| | - Michele Mauri
- Department of Materials Science, University of Milano-Bicocca, Via Roberto Cozzi 55, 20125 Milano, Italy
| | - Roberto Simonutti
- Department of Materials Science, University of Milano-Bicocca, Via Roberto Cozzi 55, 20125 Milano, Italy
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3
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Ustuntag S, Cakir N, Erdem A, Ozmen O, Dogan M. Production and Characterization of Flame Retardant Leather Waste Filled Thermoplastic Polyurethane. ACS OMEGA 2024; 9:9475-9485. [PMID: 38434846 PMCID: PMC10905688 DOI: 10.1021/acsomega.3c09074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 12/27/2023] [Accepted: 01/25/2024] [Indexed: 03/05/2024]
Abstract
Discovering new applications for discarded materials, such as leather waste (LW), has proven to be an effective approach to an ecofriendly and sustainable production. The manufacture of halogen-free flame retardant LW containing thermoplastic polyurethane (TPU)-based samples containing an organic phosphinate (OP)-based flame retardant additive would represent an advance in this area. The effects of LW and OP levels on the thermal, flame retardant, and tensile properties of the samples using thermal gravimetric analysis (TGA), limiting oxygen index (LOI), vertical UL-94 (UL-94 V), mass loss calorimetry, and tensile tests have been assessed. OP is highly effective in LW-filled TPU. The highest UL-94 V rating of V0, LOI value of 31.4%, the lowest peak heat release rate (93 ± 3 kW/m2), and total heat evolved (49 ± 2 MJ/m2) values are obtained with the use of 20 wt % OP. OP is primarily promoted through the creation of a compact intumescent residue structure in the condensed phase. LW exhibits an adjuvant effect by producing nonflammable gases in the gas phase and raising the residual yield in the condensed phase. The most remarkable effect of the LW presence is observed in fire performance index (FPI) and fire growth rate (FIGRA) values. The highest FPI value of 0.49 sm2/kW and the lowest FIGRA value of 0.91 kW/m2s are observed with the use of 20 wt % LW.
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Affiliation(s)
- Sumeyye Ustuntag
- Department
of Textile Engineering, Erciyes University, Kayseri 38039, Turkiye
| | - Nida Cakir
- Department
of Fashion Design Trabzon Vocational School, Karadeniz Technical University, Trabzon 61080, Turkiye
| | | | - Ozkan Ozmen
- Department
of Industrial Design Engineering, Erciyes
University, Kayseri 38039, Turkiye
| | - Mehmet Dogan
- Department
of Textile Engineering, Erciyes University, Kayseri 38039, Turkiye
- Erciyes
Teknopark, Hematainer Biotechnology and
Health Products Inc, Kayseri 38010, Turkiye
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4
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Micheal HSR, Thyagarajan D, Govindaraj M, Saravanakumar VK, Mohammed NB, Murugasamy Maheswari K. Biosorption of halophilic fungal melanized membrane - PUR/melanin polymer for heavy metal detoxification with electrospinning technology. ENVIRONMENTAL TECHNOLOGY 2024:1-13. [PMID: 38286341 DOI: 10.1080/09593330.2024.2310034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Accepted: 01/03/2024] [Indexed: 01/31/2024]
Abstract
Eradication of heavy metal pollution has become the prime priority over the conservation of water resources in the upcoming era. Herein, the study involved the halophilic fungal melanin from Curvularia lunata showed a promising biosorbent for the removal of toxic heavy metals which shows eco-friendly, cost-effective, high stability, and adsorbent efficiency. Polyurethane blended with fungal melanin polymers, makes polymeric nanofibrous membranes through electrospinning techniques. BET isotherms revealed the raw fungal melanin holds a surface area of 3.54 m2/g exhibiting type IV isotherms. BJH results in a total pore volume of 5.79 cc/g with a pore diameter of 6.54 ± 1 nm for pores smaller than 4544.8 Å. Exhibits Eumelanin properties were characterized by FE - SEM and FTIR functional elements. ICPMS confirmed the metal adsorption proficiency on both raw and melanized membranes before and after treatments. Over 17 heavy metals, Ni2+ were adsorbed with 100% efficiency by raw melanin alone with 42.48 µg/L of Ni2+ concentration in the water sample, whereas, Cu2+, Zn2+, Co2+, Cr2+, Pb2+, Mn2+, Al3+, Mo6+, Sb3+, Ba2+, Fe2+, and Mg2+ stands next with 99%. In this study, gentle/simple application of raw fungal melanin (without PUR tailored) can detoxify the maximum concentration of heavy metals present in the water bodies which are further used for irrigation and even drinking purposes. This mycoremediation approach can be easily adapted to industrial production than other high-performance membrane materials with minimal process modification, making it a promising strategy for improving the adsorption properties used in various applications after still furthermore investigation.
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Affiliation(s)
| | | | - Mageswari Govindaraj
- Department of Biotechnology, Sri Ramakrishna College of Arts & Science, Coimbatore, India
| | | | - Nazneen Bobby Mohammed
- Department of Biotechnology, Vignan's Foundation for Science Technology and Research, Vadlamudi, India
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5
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Głowacka J, Derpeński Ł, Frydrych M, Sztorch B, Bartoszewicz B, Przekop RE. Robotization of Three-Point Bending Mechanical Tests Using PLA/TPU Blends as an Example in the 0-100% Range. MATERIALS (BASEL, SWITZERLAND) 2023; 16:6927. [PMID: 37959523 PMCID: PMC10650072 DOI: 10.3390/ma16216927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 10/18/2023] [Accepted: 10/22/2023] [Indexed: 11/15/2023]
Abstract
This article presents the development of an automated three-point bending testing system using a robot to increase the efficiency and precision of measurements for PLA/TPU polymer blends as implementation high-throughput measurement methods. The system operates continuously and characterizes the flexural properties of PLA/TPU blends with varying TPU concentrations. This study aimed to determine the effect of TPU concentration on the strength and flexural stiffness, surface properties (WCA), thermal properties (TGA, DSC), and microscopic characterization of the studied blends.
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Affiliation(s)
- Julia Głowacka
- Centre for Advanced Technologies, Adam Mickiewicz University in Poznań, 10 Uniwersytetu Poznańskiego, 61-614 Poznań, Poland; (J.G.); (M.F.); (B.S.)
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, 8 Uniwersytetu Poznańskiego, 61-614 Poznań, Poland
| | - Łukasz Derpeński
- Faculty of Mechanical Engineering, Bialystok University of Technology, 45C Wiejska, 15-351 Bialystok, Poland; (Ł.D.); (B.B.)
| | - Miłosz Frydrych
- Centre for Advanced Technologies, Adam Mickiewicz University in Poznań, 10 Uniwersytetu Poznańskiego, 61-614 Poznań, Poland; (J.G.); (M.F.); (B.S.)
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, 8 Uniwersytetu Poznańskiego, 61-614 Poznań, Poland
| | - Bogna Sztorch
- Centre for Advanced Technologies, Adam Mickiewicz University in Poznań, 10 Uniwersytetu Poznańskiego, 61-614 Poznań, Poland; (J.G.); (M.F.); (B.S.)
| | - Błażej Bartoszewicz
- Faculty of Mechanical Engineering, Bialystok University of Technology, 45C Wiejska, 15-351 Bialystok, Poland; (Ł.D.); (B.B.)
| | - Robert E. Przekop
- Centre for Advanced Technologies, Adam Mickiewicz University in Poznań, 10 Uniwersytetu Poznańskiego, 61-614 Poznań, Poland; (J.G.); (M.F.); (B.S.)
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6
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Zhong JH, Zhou Y, Tian XX, Sun YL, Shi BR, Zhang ZY, Zhang WH, Liu XD, Yang YM. The Addition of an Ultra-Small Amount of Black Phosphorous Quantum Dots Endow Self-Healing Polyurethane with a Biomimetic Intelligent Response. Macromol Rapid Commun 2023; 44:e2300286. [PMID: 37461093 DOI: 10.1002/marc.202300286] [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: 05/17/2023] [Revised: 06/26/2023] [Indexed: 07/25/2023]
Abstract
This study explores new applications of black phosphorus quantum dots (BPQDs) by adding them to self-healing material systems for the first time. Self-healing polyurethane with an ultra-small amount of BPQDs has biomimetic intelligent responsiveness and achieves balance between its mechanical and self-healing properties. By adding 0.0001 wt% BPQDs to self-healing polyurethane, the fracture strength of the material increases from 3.0 to 12.3 MPa, and the elongation at break also increases from 750% to 860%. Meanwhile, the self-healing efficiency remains at 98%. The addition of BPQDs significantly improves the deformation recovery ability of the composite materials and transforms the surface of self-healing polyurethane from hydrophilic to hydrophobic, making it suitable for applications in fields such as electronic skin and flexible wearable devices. This study provides a simple and feasible strategy for endowing self-healing materials with biomimetic intelligent responsiveness using a small amount of BPQDs.
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Affiliation(s)
- Jia-Hui Zhong
- CAS Key Laboratory of High-Performance Synthetic Rubber and its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Yan Zhou
- CAS Key Laboratory of High-Performance Synthetic Rubber and its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
| | - Xin-Xin Tian
- CAS Key Laboratory of High-Performance Synthetic Rubber and its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Ying-Lu Sun
- CAS Key Laboratory of High-Performance Synthetic Rubber and its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Bi-Ru Shi
- CAS Key Laboratory of High-Performance Synthetic Rubber and its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Zhen-Yu Zhang
- CAS Key Laboratory of High-Performance Synthetic Rubber and its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Wen-Hua Zhang
- Power and Environmental Control Research Department, China Special Vehicle Research Institute, Jingmen, 448000, China
| | - Xiang-Dong Liu
- CAS Key Laboratory of High-Performance Synthetic Rubber and its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Yu-Ming Yang
- CAS Key Laboratory of High-Performance Synthetic Rubber and its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, China
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7
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Calderon MJP, Dumancas GG, Gutierrez CS, Lubguban AA, Alguno AC, Malaluan RM, Lubguban AA. Producing polyglycerol polyester polyol for thermoplastic polyurethane application: A novel valorization of glycerol, a by-product of biodiesel production. Heliyon 2023; 9:e19491. [PMID: 37662775 PMCID: PMC10472058 DOI: 10.1016/j.heliyon.2023.e19491] [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: 04/10/2023] [Revised: 07/28/2023] [Accepted: 08/24/2023] [Indexed: 09/05/2023] Open
Abstract
The production of biodiesel generates glycerol as a by-product that needs valorization. Glycerol, when converted to polyglycerol, is a potential polyol for bio-based thermoplastic polyurethane (TPU) production. In this study, a novel polyglycerol polyester polyol (PPP) was developed from refined glycerol and coconut oil-based polyester polyol. Glycerol was first converted to glycerol acetate and then polymerized with coconut oil-based polyester polyol (CPP) as secondary polyol and phthalic anhydride. The resulting PPP polymerized at 220 °C and OH:COOH molar ratio of 2.5 exhibited an OH number of <100 mg KOH·g sample-1, an acid number of <10 mg KOH·g sample-1, and a molecular weight (MW) of 3697 g mol-1 meeting the polyol requirement properties for TPU (Handlin et al., 2001; Parcheta et al., 2020) [1-2]. Fourier-transform infrared (FTIR) spectroscopic characterization determined that higher reaction temperatures increase the polymerization rate and decrease the OH and acid numbers. Further, higher OH:COOH molar ratios decrease the polymerization rate and acid number, and increase the OH number. Gel permeation chromatography determined the molecular weight of PPP and suggested two distinct molecular structures which differ only in the number of moles of CPP in the structure. A differential scanning calorimetric (DSC) experiment on a sample of PPP-based polyurethane revealed that it was able to melt and remelt after 3 heating cycles which demonstrates its thermoplastic ability. The novel PPP derived from the glycerol by-product of biodiesel industries can potentially replace petroleum-derived polyols for TPU production.
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Affiliation(s)
- Mike Jhun P. Calderon
- Center for Sustainable Polymers, Mindanao State University - Iligan Institute of Technology, Iligan City, 9200, Philippines
- Department of Materials and Resources Engineering and Technology, Graduate School of Engineering, Mindanao State University - Iligan Institute of Technology, Iligan City, 9200, Philippines
| | - Gerard G. Dumancas
- Department of Chemistry, The University of Scranton, Scranton, PA, 18510, USA
| | - Carlo S. Gutierrez
- Comparative Asian Studies, National University of Singapore, Singapore, 11926
| | - Alona A. Lubguban
- Department of Mathematics, Statistics, and Computer Studies, University of the Philippines Rural High School, Paciano Rizal, Bay, Laguna, 4033, Philippines
| | - Arnold C. Alguno
- Center for Sustainable Polymers, Mindanao State University - Iligan Institute of Technology, Iligan City, 9200, Philippines
| | - Roberto M. Malaluan
- Center for Sustainable Polymers, Mindanao State University - Iligan Institute of Technology, Iligan City, 9200, Philippines
- Department of Chemical Engineering and Technology, Mindanao State University - Iligan Institute of Technology, Iligan City, 9200, Philippines
| | - Arnold A. Lubguban
- Center for Sustainable Polymers, Mindanao State University - Iligan Institute of Technology, Iligan City, 9200, Philippines
- Department of Chemical Engineering and Technology, Mindanao State University - Iligan Institute of Technology, Iligan City, 9200, Philippines
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8
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Wang X, Zhao Z, Zhang M, Liang Y, Liu Y. Polyurethanes Modified by Ionic Liquids and Their Applications. Int J Mol Sci 2023; 24:11627. [PMID: 37511385 PMCID: PMC10380480 DOI: 10.3390/ijms241411627] [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: 06/30/2023] [Revised: 07/16/2023] [Accepted: 07/17/2023] [Indexed: 07/30/2023] Open
Abstract
Polyurethane (PU) refers to the polymer containing carbamate groups in its molecular structure, generally obtained by the reaction of isocyanate and alcohol. Because of its flexible formulation, diverse product forms, and excellent performance, it has been widely used in mechanical engineering, electronic equipment, biomedical applications, etc. Through physical or chemical methods, ionic groups are introduced into PU, which gives PU electrical conductivity, flame-retardant, and antistatic properties, thus expanding the application fields of PU, especially in flexible devices such as sensors, actuators, and functional membranes for batteries and gas absorption. In this review, we firstly introduced the characteristics of PU in chemical and microphase structures and their related physical and chemical performance. To improve the performance of PU, ionic liquids (ILs) were applied in the processing or synthesis of PU, resulting in a new type of PU called ionic PU. In the following part of this review, we mainly summarized the fabrication methods of IL-modified PUs via physical blending and the chemical copolymerization method. Then, we summarized the research progress of the applications for IL-modified PUs in different fields, including sensors, actuators, transistors, antistatic films, etc. Finally, we discussed the future development trends and challenges faced by IL-modified PUs.
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Affiliation(s)
- Xue Wang
- State Key Laboratory of Metastable Materials Science and Technology, College of Materials Science and Engineering, Yanshan University, Qinhuangdao 066004, China
| | - Zhenjie Zhao
- State Key Laboratory of Metastable Materials Science and Technology, College of Materials Science and Engineering, Yanshan University, Qinhuangdao 066004, China
| | - Meiyu Zhang
- State Key Laboratory of Metastable Materials Science and Technology, College of Materials Science and Engineering, Yanshan University, Qinhuangdao 066004, China
| | - Yongri Liang
- State Key Laboratory of Metastable Materials Science and Technology, College of Materials Science and Engineering, Yanshan University, Qinhuangdao 066004, China
| | - Yingdan Liu
- State Key Laboratory of Metastable Materials Science and Technology, College of Materials Science and Engineering, Yanshan University, Qinhuangdao 066004, China
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9
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Mutlu A, Erdem A, Dogan M. Potential Use of Melamine Phytate as a Flame-Retardant Additive in Chicken Feather-Containing Thermoplastic Polyurethane Biocomposites. ACS OMEGA 2023; 8:25081-25089. [PMID: 37483238 PMCID: PMC10357521 DOI: 10.1021/acsomega.3c01754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 06/21/2023] [Indexed: 07/25/2023]
Abstract
Using waste materials such as chicken feathers (CF) and biobased flame-retardant additives including melamine phytate (MPht) has become an effective approach for environmentally friendly and sustainable production in recent years. This study explores the flame retardant effectiveness of MPht in thermoplastic polyurethane (TPU)-based biocomposites containing CF. The characterizations of the composites are performed through thermal gravimetric analysis (TGA), limiting oxygen index (LOI), vertical UL-94 (UL-94 V), and mass loss calorimetry (MLC) tests. According to the test results, the highest UL-94 V rating of V0, a LOI value of 29.4%, and the lowest peak heat release rate (pHRR) (110 Kw/m2) and total heat evolved (THE) (39 MJ/m2) values are obtained with the use of 20 wt % MPht. It is demonstrated that MPht acts as an effective flame-retardant filler through the formation of intumescent char in the condensed phase and flame dilution in the gas phase.
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Affiliation(s)
- Aysenur Mutlu
- Department
of Textile, Apparel and Leather Van Vocational School of Higher Education, Yuzuncu Yıl University, 65080 Van, Turkey
| | - Aysegul Erdem
- Department
of Textile Engineering, Erciyes University, 38039 Kayseri, Turkey
| | - Mehmet Dogan
- Department
of Textile Engineering, Erciyes University, 38039 Kayseri, Turkey
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10
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Shen J, Li X, Li P, Shentu B. Exploring thermodynamic and structural properties of carbon nanotube/thermoplastic polyurethane nanocomposites from atomistic molecular dynamics simulations. RSC Adv 2023; 13:21080-21087. [PMID: 37448641 PMCID: PMC10336647 DOI: 10.1039/d3ra03000h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Accepted: 07/07/2023] [Indexed: 07/15/2023] Open
Abstract
Carbon nanotubes (CNTs) and thermoplastic polyurethane (TPU) nanocomposites have emerged as promising materials for various applications in the field of nanotechnology. An understanding of the thermodynamic and structural properties is of fundamental significance in designing and fabricating CNT/TPU nanocomposites with desired properties. To this end, this work has employed atomistic molecular dynamics (MD) simulations to study the thermal properties and interfacial characteristics of TPU composites filled with pristine or functionalized single-walled carbon nanotubes (SWNTs). Simulations reveal that the introduction of SWNTs suppresses TPU chain dynamics and favors the hydrogen bond formation induced by the wrapping of TPU chains around SWNTs, leading to an increase of glass transition temperature (Tg) and a reduction of volumetric coefficient of thermal expansion (CTE) in the rubbery state. Compared to pristine and hydrogenated SWNTs, SWNTs featuring polar groups, such as carboxyl (-COOH), oxhydryl (-OH) and amine (-NH2) groups, show improved affinity for TPU molecules, suppressing polymer mobility. Analysis of SWNT/TPU binding energy and solubility parameter suggests that electrostatic interactions are responsible for such a functionalized SWNT/TPU interface enhancement. Furthermore, the amine groups exhibit the highest potential for forming hydrogen bonds with the urethane carbonyl (-C[double bond, length as m-dash]O) of TPU chains, resulting in lowest polymer mobility and highest Tg. In general, this research work could provide some guidance for material design of polymer nanocomposites and future simulations relevant to TPUs.
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Affiliation(s)
- Jianxiang Shen
- State Key Lab of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University Hangzhou 310027 China
- Department of Polymer Science and Technology, Jiaxing University Jiaxing 314001 China
- Zhejiang Double Arrow Rubber Co., Ltd. Tongxiang 314513 China
| | - Xue Li
- School of Advanced Materials Engineering, Jiaxing Nanhu University Jiaxing 314001 China
| | - Ping Li
- Zhejiang Double Arrow Rubber Co., Ltd. Tongxiang 314513 China
| | - Baoqing Shentu
- State Key Lab of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University Hangzhou 310027 China
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11
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YILGÖR E, YILGÖR İ. Influence of soft segment structure, hydrogen bonding, and diisocyanate symmetry on morphology and properties of segmented thermoplastic polyurethanes and polyureas. Turk J Chem 2023; 47:1007-1017. [PMID: 38173740 PMCID: PMC10760815 DOI: 10.55730/1300-0527.3591] [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: 03/23/2023] [Revised: 10/31/2023] [Accepted: 06/22/2023] [Indexed: 01/05/2024] Open
Abstract
A comprehensive review of the structure-morphology-property relations in segmented thermoplastic polyurethanes and polyureas (TPU) is provided. Special emphasis is given to the influence of the soft segment structure, polarity, and molecular weight, diisocyanate symmetry and the nature, extent, and strength of hydrogen bonding on the morphology and thermal and mechanical properties of TPUs. Experimental results obtained on composition-dependent TPU morphology and properties by various techniques were also compared by the morphology profiles generated by computational methods such as quantum mechanical calculations and molecular dynamics simulations.
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Affiliation(s)
- Emel YILGÖR
- Chemistry Department, Koç University, İstanbul,
Turkiye
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12
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Rogulska M. The Influence of Diisocyanate Structure on Thermal Stability of Thermoplastic Polyurethane Elastomers Based on Diphenylmethane-Derivative Chain Extender with Sulfur Atoms. MATERIALS (BASEL, SWITZERLAND) 2023; 16:2618. [PMID: 37048910 PMCID: PMC10096118 DOI: 10.3390/ma16072618] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 03/16/2023] [Accepted: 03/23/2023] [Indexed: 06/19/2023]
Abstract
The work is a continuation of the research on thermoplastic polyurethane (TPU) elastomers containing sulfur atoms which are incorporated into the polyurethane chain using aliphatic-aromatic chain extenders. These materials show some improved properties in relation to conventional ones, e.g., adhesion to metals, bacterial resistance and refractive index. The present study deals with the detailed characteristics of the process of thermal decomposition of TPU elastomers obtained from 2,2'-[methylenebis(1,4-phenylenemethylenethio)]diethanol, 1,1'-methanediylbis(4-isocyanatobenzene) (MDI) or 1,6-diisocyanatohexane (HDI) and poly(oxytetramethylene) diol of Mn = 2000 g/mol by thermogravimetric analysis coupled on-line with Fourier transform infrared spectroscopy. The analysis was performed under inert and oxidative conditions. All TPU elastomers were found to have a relatively good thermal stability, with those based on aromatic diisocyanate being at an advantage. In helium, they are stable up to 280-282 °C (from HDI) and 299-301 °C (from MDI), whereas in synthetic air up to 252-265 °C (from HDI) and 261-272 °C (from MDI), as measured by the temperature of 1% mass loss. Depending on the content of the hard segments and the tested atmosphere, the TPU elastomers decompose from one to four stages. From the analysis of the volatile decomposition products, it follows that the decomposition of both types of hard segments was accompanied by the evolution of carbonyl sulfide, carbon dioxide, water, sulfide dioxide, alcohols and aromatic compounds. For the hard segment derived from HDI, isocyanates, amines, and unsaturated compounds were also identified, while for the MDI-derived one, aldehydes were discovered. In turn, the polyether soft segment decomposed mainly into aliphatic ethers, aldehydes, and carbon monoxide.
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Affiliation(s)
- Magdalena Rogulska
- Department of Polymer Chemistry, Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie-Skłodowska University in Lublin, Gliniana 33, 20-614 Lublin, Poland
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13
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Abdul Samat A, Abdul Hamid ZA, Jaafar M, Ong CC, Yahaya BH. Investigation of the In Vitro and In Vivo Biocompatibility of a Three-Dimensional Printed Thermoplastic Polyurethane/Polylactic Acid Blend for the Development of Tracheal Scaffolds. Bioengineering (Basel) 2023; 10:bioengineering10040394. [PMID: 37106581 PMCID: PMC10136332 DOI: 10.3390/bioengineering10040394] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 01/18/2023] [Accepted: 02/02/2023] [Indexed: 04/29/2023] Open
Abstract
Tissue-engineered polymeric implants are preferable because they do not cause a significant inflammatory reaction in the surrounding tissue. Three-dimensional (3D) technology can be used to fabricate a customised scaffold, which is critical for implantation. This study aimed to investigate the biocompatibility of a mixture of thermoplastic polyurethane (TPU) and polylactic acid (PLA) and the effects of their extract in cell cultures and in animal models as potential tracheal replacement materials. The morphology of the 3D-printed scaffolds was investigated using scanning electron microscopy (SEM), while the degradability, pH, and effects of the 3D-printed TPU/PLA scaffolds and their extracts were investigated in cell culture studies. In addition, subcutaneous implantation of 3D-printed scaffold was performed to evaluate the biocompatibility of the scaffold in a rat model at different time points. A histopathological examination was performed to investigate the local inflammatory response and angiogenesis. The in vitro results showed that the composite and its extract were not toxic. Similarly, the pH of the extracts did not inhibit cell proliferation and migration. The analysis of biocompatibility of the scaffolds from the in vivo results suggests that porous TPU/PLA scaffolds may facilitate cell adhesion, migration, and proliferation and promote angiogenesis in host cells. The current results suggest that with 3D printing technology, TPU and PLA could be used as materials to construct scaffolds with suitable properties and provide a solution to the challenges of tracheal transplantation.
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Affiliation(s)
- Asmak Abdul Samat
- Lung Stem Cell and Gene Therapy Group, Department of Biomedical Sciences, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Sains@Bertam, Kepala Batas 13200, Malaysia
- Department of Fundamental Dental and Medical Sciences, Kulliyyah of Dentistry, International Islamic University Malaysia, Kuantan 25200, Malaysia
| | - Zuratul Ain Abdul Hamid
- School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia, Nibong Tebal 14300, Malaysia
| | - Mariatti Jaafar
- School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia, Nibong Tebal 14300, Malaysia
| | - Chern Chung Ong
- Fabbxible Technology, 11a Jalan IKS Bukit Tengah, Tmn IKS Bukit Tengah, Bukit Mertajam 14000, Malaysia
| | - Badrul Hisham Yahaya
- Lung Stem Cell and Gene Therapy Group, Department of Biomedical Sciences, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Sains@Bertam, Kepala Batas 13200, Malaysia
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14
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Mouren A, Avérous L. Sustainable cycloaliphatic polyurethanes: from synthesis to applications. Chem Soc Rev 2023; 52:277-317. [PMID: 36520183 DOI: 10.1039/d2cs00509c] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Polyurethanes (PUs) are a versatile and major polymer family, mainly produced via polyaddition between polyols and polyisocyanates. A large variety of fossil-based building blocks is commonly used to develop a wide range of macromolecular architectures with specific properties. Due to environmental concerns, legislation, rarefaction of some petrol fractions and price fluctuation, sustainable feedstocks are attracting significant attention, e.g., plastic waste and biobased resources from biomass. Consequently, various sustainable building blocks are available to develop new renewable macromolecular architectures such as aromatics, linear aliphatics and cycloaliphatics. Meanwhile, the relationship between the chemical structures of these building blocks and properties of the final PUs can be determined. For instance, aromatic building blocks are remarkable to endow materials with rigidity, hydrophobicity, fire resistance, chemical and thermal stability, whereas acyclic aliphatics endow them with oxidation and UV light resistance, flexibility and transparency. Cycloaliphatics are very interesting as they combine most of the advantages of linear aliphatic and aromatic compounds. This original and unique review presents a comprehensive overview of the synthesis of sustainable cycloaliphatic PUs using various renewable products such as biobased terpenes, carbohydrates, fatty acids and cholesterol and/or plastic waste. Herein, we summarize the chemical modification of the main sustainable cycloaliphatic feedstocks, synthesis of PUs using these building blocks and their corresponding properties and subsequently present their major applications in hot-topic fields, including building, transportation, packaging and biomedicine.
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Affiliation(s)
- Agathe Mouren
- BioTeam/ICPEES-ECPM, UMR CNRS 7515, Université de Strasbourg, 25 rue Becquerel, 67087 Strasbourg Cedex 2, France.
| | - Luc Avérous
- BioTeam/ICPEES-ECPM, UMR CNRS 7515, Université de Strasbourg, 25 rue Becquerel, 67087 Strasbourg Cedex 2, France.
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15
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Thermomechanical response of thermoplastic polyurethane used in MEX additive manufacturing over repetitive mechanical recycling courses. Polym Degrad Stab 2023. [DOI: 10.1016/j.polymdegradstab.2022.110232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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16
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Fawzi T, Al‐Talib AAM. The effect of water and sodium hydrogen carbonate content on flexible polyurethane's microstructure, water, and mechanical properties. POLYM ENG SCI 2022. [DOI: 10.1002/pen.26205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Tarek Fawzi
- Institute of Photonics National Sun Yat‐sen University Kaohsiung City Taiwan
| | - Ammar A. M. Al‐Talib
- Faculty of Engineering, Technology & Built Environment UCSI University Kuala Lumpur Malaysia
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17
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Renewable low viscosity
polyester‐polyols
for biodegradable thermoplastic polyurethanes. J Appl Polym Sci 2022. [DOI: 10.1002/app.53062] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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18
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Fei Y, Jiang R, Fang W, Liu T, Saeb MR, Hejna A, Ehsani M, Barczewski M, Sajadi SM, Chen F, Kuang T. Highly sensitive large strain cellulose/multiwalled carbon nanotubes (MWCNTs)/thermoplastic polyurethane (TPU) nanocomposite foams: From design to performance evaluation. J Supercrit Fluids 2022. [DOI: 10.1016/j.supflu.2022.105653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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19
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Rajput BS, Hai TAP, Burkart MD. High Bio-Content Thermoplastic Polyurethanes from Azelaic Acid. Molecules 2022; 27:molecules27154885. [PMID: 35956835 PMCID: PMC9370010 DOI: 10.3390/molecules27154885] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 07/25/2022] [Accepted: 07/26/2022] [Indexed: 12/03/2022] Open
Abstract
To realize the commercialization of sustainable materials, new polymers must be generated and systematically evaluated for material characteristics and end-of-life treatment. Polyester polyols made from renewable monomers have found limited adoption in thermoplastic polyurethane (TPU) applications, and their broad adoption in manufacturing may be possible with a more detailed understanding of their structure and properties. To this end, we prepared a series of bio-based crystalline and amorphous polyester polyols utilizing azelaic acid and varying branched or non-branched diols. The prepared polyols showed viscosities in the range of 504–781 cP at 70 °C, with resulting TPUs that displayed excellent thermal and mechanical properties. TPUs prepared from crystalline azelate polyester polyol exhibited excellent mechanical properties compared to TPUs prepared from amorphous polyols. These were used to demonstrate prototype products, such as watch bands and cup-shaped forms. Importantly, the prepared TPUs had up to 85% bio-carbon content. Studies such as these will be important for the development of renewable materials that display mechanical properties suitable for commercially viable, sustainable products.
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20
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Mayakrishnan V, Mohamed JK, Selvaraj N, SenthilKumar D, Annadurai S. Effect of nano-biochar on mechanical, barrier and mulching properties of 3D printed thermoplastic polyurethane film. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04380-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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21
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Demarteau J, Epstein AR, Christensen PR, Abubekerov M, Wang H, Teat SJ, Seguin TJ, Chan CW, Scown CD, Russell TP, Keasling JD, Persson KA, Helms BA. Circularity in mixed-plastic chemical recycling enabled by variable rates of polydiketoenamine hydrolysis. SCIENCE ADVANCES 2022; 8:eabp8823. [PMID: 35857832 PMCID: PMC9299546 DOI: 10.1126/sciadv.abp8823] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 06/07/2022] [Indexed: 06/08/2023]
Abstract
Footwear, carpet, automotive interiors, and multilayer packaging are examples of products manufactured from several types of polymers whose inextricability poses substantial challenges for recycling at the end of life. Here, we show that chemical circularity in mixed-polymer recycling becomes possible by controlling the rates of depolymerization of polydiketoenamines (PDK) over several orders of magnitude through molecular engineering. Stepwise deconstruction of mixed-PDK composites, laminates, and assemblies is chemospecific, allowing a prescribed subset of monomers, fillers, and additives to be recovered under pristine condition at each stage of the recycling process. We provide a theoretical framework to understand PDK depolymerization via acid-catalyzed hydrolysis and experimentally validate trends predicted for the rate-limiting step. The control achieved by PDK resins in managing chemical and material entropy points to wide-ranging opportunities for pairing circular design with sustainable manufacturing.
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Affiliation(s)
- Jeremy Demarteau
- The Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Alexander R. Epstein
- Materials Sciences and Engineering, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Peter R. Christensen
- The Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Mark Abubekerov
- The Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Hai Wang
- The Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Simon J. Teat
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Trevor J. Seguin
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Christopher W. Chan
- The Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Corinne D. Scown
- Joint BioEnergy Institute, Emeryville, CA 94608, USA
- Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
- Energy Analysis and Environmental Impacts Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
- Energy and Biosciences Institute, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Thomas P. Russell
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
- Polymer Science and Engineering Department, University of Massachusetts, Amherst, MA 01003, USA
- Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
| | - Jay D. Keasling
- Joint BioEnergy Institute, Emeryville, CA 94608, USA
- Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
- Department of Chemical and Biomolecular Engineering and Department of Bioengineering, University of California, Berkeley, Berkeley, CA 94720, USA
- Center for Synthetic Biochemistry, Institute for Synthetic Biology, Shenzhen Institutes of Advanced Technologies, Shenzhen 518055, China
- Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Lyngby, Denmark
| | - Kristin A. Persson
- The Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
- Materials Sciences and Engineering, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Brett A. Helms
- The Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
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22
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Wisnewski AV, Liu J. Glutathione reactivity with aliphatic polyisocyanates. PLoS One 2022; 17:e0271471. [PMID: 35839242 PMCID: PMC9286259 DOI: 10.1371/journal.pone.0271471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 06/30/2022] [Indexed: 11/18/2022] Open
Abstract
Isocyanate chemicals known to cause adverse health effects when inhaled are essential to making important products and are used in multiple industries. Glutathione (GSH), a major antioxidant of the lower airways with a well described role in xenobiotic metabolism, is a primary reaction target for di-isocyantes. However, GSHs reactivity with poly-isocyanates which have largely replaced diisocyanates (particularly aliphatic) in most end-user settings remains uncertain. We hypothesized aliphatic polyisocyanates would readily react with glutathione under physiologic conditions and the products could be identified using liquid chromatography (LC) coupled-mass spectrometry (MS) and tandem MS/MS. The data identified (tris)GSH-isocyanate adducts as the major reaction product of GSH with the most commonly used contemporary polymeric (tri-isocyanate) formulations of hexamethylene diisocyanate (HDI), the isocyanurate and biuret, as [M+H]+ ions of 1426.53 and 1400.55 m/z respectively in reverse phase LC-MS using electrospray in positive ion mode. The uretdione form of HDI, a stabilized dimer, formed two reaction products with GSH, a tris(GSH)-isocyanate reaction product recognized as a 1258.44 m/z [M+H]+ ion, and a bis(GSH)-isocyanate product identified as a 951.36 m/z [M+H]+ ion. Predicted structures for the newly described GSH-polyisocyanate reaction products, modeled based on collision induced dissociation (CID) fragmentation patterns in tandem MS/MS, support S-linkage of the GSH to N = C = O groups. In summary, industrially-used aliphatic polyisocyanates readily react with GSH to form primarily S-linked tris(GSH)-conjugates, a process that may play an important role in response to respiratory tract exposure.
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Affiliation(s)
- Adam V. Wisnewski
- Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut, United States of America
- * E-mail:
| | - Jian Liu
- Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut, United States of America
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23
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Ding C, Wang J, Yuan W, Zhou X, Lin Y, Zhu G, Li J, Zhong T, Su W, Cui Z. Durability Study of Thermal Transfer Printed Textile Electrodes for Wearable Electronic Applications. ACS APPLIED MATERIALS & INTERFACES 2022; 14:29144-29155. [PMID: 35723443 DOI: 10.1021/acsami.2c03807] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Textile-based electronics hold great promise because they can endow wearable devices with soft and comfortable characteristics. However, the inherent porosity and fluffiness of fabrics result in high surface roughness, which presents great challenges in the manufacture of high-performance fabric electrodes. In this work, we propose a thermal transfer printing method to address the above challenges, in which electrodes or circuits of silver flake/thermoplastic polyurethane (TPU) composites are prefabricated on a release film by coating and laser engraving and then laminated by hot-pressing to a variety of fabrics and textiles. This universal and scalable production technique enables fabric electrodes to be made without compromising the original wearability, washability, and stretchability of textiles. The prepared fabric electrodes exhibit high conductivity (5.48 × 104 S/cm), high adhesion (≥1750 N/m), good abrasion/washing resistance, high patterning resolution (∼40 μm), and good electromechanical performance up to 50% strain. To demonstrate the potential applications, we developed textile-based radio frequency identification (RFID) tags for remote identification and a large-sized heater for wearable thermotherapy. More importantly, the solvent-free thermal transfer printing technology developed in this paper enables people to DIY interesting flexible electronics on clothes with daily tools, which can promote the commercial application of smart textile-based electronics.
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Affiliation(s)
- Chen Ding
- Printable Electronics Research Centre, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, People's Republic of China
| | - Jiayi Wang
- Printable Electronics Research Centre, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, People's Republic of China
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei 230026, People's Republic of China
| | - Wei Yuan
- Printable Electronics Research Centre, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, People's Republic of China
| | - Xiaojin Zhou
- Suzhou Institute of Fiber Inspection, Suzhou 215123, People's Republic of China
| | - Yong Lin
- Printable Electronics Research Centre, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, People's Republic of China
| | - Guoqing Zhu
- Suzhou Institute of Fiber Inspection, Suzhou 215123, People's Republic of China
| | - Jie Li
- Jiangsu Textiles Quality Services Inspection Testing Institute, Nanjing 210007, People's Republic of China
| | - Tao Zhong
- Printable Electronics Research Centre, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, People's Republic of China
| | - Wenming Su
- Printable Electronics Research Centre, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, People's Republic of China
| | - Zheng Cui
- Printable Electronics Research Centre, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, People's Republic of China
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24
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Phung Hai T, Samoylov AA, Rajput BS, Burkart MD. Laboratory Ozonolysis Using an Integrated Batch-DIY Flow System for Renewable Material Production. ACS OMEGA 2022; 7:15350-15358. [PMID: 35571824 PMCID: PMC9096922 DOI: 10.1021/acsomega.1c06823] [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: 12/02/2021] [Accepted: 04/07/2022] [Indexed: 06/15/2023]
Abstract
Flow chemistry offers a solution for replacing batch methods in chemical preparation where intermediates or products may pose toxicity or instability hazards. Ozonolysis offers an ideal opportunity for flow chemistry solutions, but multiple barriers to entry exist for use of these methods, including equipment cost and performance optimization. To address these challenges, we developed a programmable DIY syringe pump system to use for a continuous flow multireactor process using 3D-printed parts, off-the-shelf stepper motors, and an Arduino microcontroller. Reaction kinetics of ozonide formation informed the use of an integrated batch-flow approach, where ozone addition to an olefin was timed to coincide with fluid movement of a single-syringe pump, followed by downstream Pinnick oxidation and reductive quench in flow. The system was demonstrated by continuous preparation of azelaic acid from ozonolysis of palmitoleic acid, a process limited to low production volumes via batch chemistry. High total production of azelaic acid with 80% yield was obtained from an algae oil sourced unsaturated fatty acid: a product with important applications in medicine, cosmetics, and polymers. This low-cost, scalable approach offers the potential for rapid prototyping and distributed chemical production.
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25
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Can tetraphenylethane (TPE) “iniferter” groups be introduced into polymer chains by coupling TPE diol with diisocyanates? POLYMER 2022. [DOI: 10.1016/j.polymer.2022.124738] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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26
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Farooq S, Chen B, Ahmad S, Muhammad I, Hussain Q, Wu H. Room-Temperature, Ionic-Liquid-Enhanced, Beta-Cyclodextrin-Based, Molecularly Imprinted Polymers for the Selective Extraction of Abamectin. NANOMATERIALS 2022; 12:nano12061017. [PMID: 35335830 PMCID: PMC8953458 DOI: 10.3390/nano12061017] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 03/14/2022] [Accepted: 03/18/2022] [Indexed: 12/23/2022]
Abstract
To ensure environmental protection and food quality and safety, the trace level detection of pesticide residues with molecularly imprinted polymers using a more economic, reliable, and greener approach is always demanded. Herein, novel, enhanced, imprinted polymers based on beta-cyclodextrin, using room-temperature, ionic liquid as a solvent for abamectin were developed with a simple polymerization process. The successful synthesis of the polymers was verified, with morphological and structural characterization performed via scanning electron microscope analysis, nitrogen adsorption experiments, and thermogravimetric analysis. The imprinted polymers showed good adsorption ability, which was confirmed with a pseudo-second-order kinetic model and a Langmuir isotherm model, as they exhibit a theoretical adsorption of 15.08 mg g−1 for abamectin. The polymers showed high selectivity for abamectin and significant reusability without significant performance loss. The MIPs were used to analyze abamectin in spiked apple, banana, orange, and grape samples, and as a result, a good recovery of 81.67−101.47%, with 1.26−4.36% relative standard deviation, and limits of detection and quantitation of 0.02 µg g−1 and 0.05 µg g−1, respectively, was achieved within a linear range of 0.03−1.50 µg g−1. Thus, room-temperature, ionic-liquid-enhanced, beta-cyclodextrin-based, molecularly imprinted polymers for the selective detection of abamectin proved to be a convenient and practical platform.
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Affiliation(s)
- Saqib Farooq
- Guangxi Key Laboratory of Agric-Environment and Agric-Products Safety, Agricultural College of Guangxi University, Nanning 530004, China; (S.F.); (B.C.); (S.A.); (I.M.)
| | - Bochang Chen
- Guangxi Key Laboratory of Agric-Environment and Agric-Products Safety, Agricultural College of Guangxi University, Nanning 530004, China; (S.F.); (B.C.); (S.A.); (I.M.)
| | - Shakeel Ahmad
- Guangxi Key Laboratory of Agric-Environment and Agric-Products Safety, Agricultural College of Guangxi University, Nanning 530004, China; (S.F.); (B.C.); (S.A.); (I.M.)
| | - Ihsan Muhammad
- Guangxi Key Laboratory of Agric-Environment and Agric-Products Safety, Agricultural College of Guangxi University, Nanning 530004, China; (S.F.); (B.C.); (S.A.); (I.M.)
| | - Quaid Hussain
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, 666 Wusu Street, Hangzhou 311300, China;
| | - Haiyan Wu
- Guangxi Key Laboratory of Agric-Environment and Agric-Products Safety, Agricultural College of Guangxi University, Nanning 530004, China; (S.F.); (B.C.); (S.A.); (I.M.)
- Correspondence:
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27
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Valim FCF, Oliveira GP, Vasconcelos G, Paiva LB, Santillo C, Lavorgna M, Andrade RJE. Unraveling the impact of phase separation induced by thermal annealing on shape memory effect of polyester‐based thermoplastic polyurethane. J Appl Polym Sci 2022. [DOI: 10.1002/app.51723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Fernanda Cabrera Flores Valim
- Mackgraphe ‐ Mackenzie Institute for Research in Graphene and Nanotechnologies Mackenzie Presbyterian Institute São Paulo Brazil
- Laboratory of Chemical Processes and Particle Technology, Group for Bionanomanufacturing (BIONANO) Institute for Technological Research (IPT) São Paulo Brazil
| | - Gustavo Peixoto Oliveira
- Mackgraphe ‐ Mackenzie Institute for Research in Graphene and Nanotechnologies Mackenzie Presbyterian Institute São Paulo Brazil
| | - Gibran Vasconcelos
- Lightweight Structures Laboratory (LEL) Institute for Technological Research (IPT) São Paulo Brazil
| | - Lucilene Betega Paiva
- Laboratory of Chemical Processes and Particle Technology, Group for Bionanomanufacturing (BIONANO) Institute for Technological Research (IPT) São Paulo Brazil
| | - Chiara Santillo
- Institute for Polymers, Composites and Biomaterials National Research Council of Italy Portici Italy
| | - Marino Lavorgna
- Institute for Polymers, Composites and Biomaterials National Research Council of Italy Portici Italy
| | - Ricardo Jorge Espanhol Andrade
- Mackgraphe ‐ Mackenzie Institute for Research in Graphene and Nanotechnologies Mackenzie Presbyterian Institute São Paulo Brazil
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Hoffmann M, Hermesmann M, Leven M, Leitner W, Müller TE. Semi-Crystalline Polyoxymethylene- co-Polyoxyalkylene Multi-Block Telechels as Building Blocks for Polyurethane Applications. Polymers (Basel) 2022; 14:882. [PMID: 35267705 PMCID: PMC8912848 DOI: 10.3390/polym14050882] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 02/13/2022] [Accepted: 02/16/2022] [Indexed: 11/21/2022] Open
Abstract
Hydroxy-terminated polyoxymethylene-co-polyoxyalkylene multi-block telechels were obtained by a new methodology that allows for the formal substituting of ether units in polyether polyols with oxymethylene moieties. An interesting feature is that, unlike carbonate groups in polycarbonate and polyethercarbonate polyols, homopolymer blocks of polyoxymethylene moieties can be formed. The regular nature of polyoxymethylene blocks imparts a certain crystallinity to the polymer that can give rise to new properties of polyurethanes derived from such telechels. The synthesis, reaction sequence and kinetics of the formation of oligomeric hydroxy-terminated multi-block telechel polyoxymethylene moieties are discussed in this paper and the preparation of a polyurethane material is demonstrated.
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Affiliation(s)
- Matthias Hoffmann
- CAT Catalytic Center, RWTH Aachen University, Worringerweg 2, 52074 Aachen, Germany; (M.H.); (M.L.); (W.L.)
| | - Matthias Hermesmann
- Carbon Sources and Conversion, Ruhr-Universität Bochum, Universitätsstraße 150, 44801 Bochum, Germany;
| | - Matthias Leven
- CAT Catalytic Center, RWTH Aachen University, Worringerweg 2, 52074 Aachen, Germany; (M.H.); (M.L.); (W.L.)
- Covestro Deutschland AG, COV-CCO-PUR-R&D-EMEA-DRDII, B108, 51365 Leverkusen, Germany
| | - Walter Leitner
- CAT Catalytic Center, RWTH Aachen University, Worringerweg 2, 52074 Aachen, Germany; (M.H.); (M.L.); (W.L.)
- Max Planck Institute for Chemical Energy Conversion, Stiftstrasse 34–36, 45470 Mulheim an der Ruhr, Germany
| | - Thomas Ernst Müller
- CAT Catalytic Center, RWTH Aachen University, Worringerweg 2, 52074 Aachen, Germany; (M.H.); (M.L.); (W.L.)
- Carbon Sources and Conversion, Ruhr-Universität Bochum, Universitätsstraße 150, 44801 Bochum, Germany;
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Di Bisceglie F, Quartinello F, Vielnascher R, Guebitz GM, Pellis A. Cutinase-Catalyzed Polyester-Polyurethane Degradation: Elucidation of the Hydrolysis Mechanism. Polymers (Basel) 2022; 14:polym14030411. [PMID: 35160402 PMCID: PMC8838978 DOI: 10.3390/polym14030411] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 01/10/2022] [Accepted: 01/17/2022] [Indexed: 02/01/2023] Open
Abstract
Polyurethanes (PU) are one of the most-used classes of synthetic polymers in Europe, having a considerable impact on the plastic waste management in the European Union. Therefore, they represent a major challenge for the recycling industry, which requires environmentally friendly strategies to be able to re-utilize their monomers without applying hazardous and polluting substances in the process. In this work, enzymatic hydrolysis of a polyurethane-polyester (PU-PE) copolymer using Humicola insolens cutinase (HiC) has been investigated in order to achieve decomposition at milder conditions and avoiding harsh chemicals. PU-PE films have been incubated with the enzyme at 50 °C for 168 h, and hydrolysis has been followed throughout the incubation. HiC effectively hydrolysed the polymer, reducing the number average molecular weight (Mn) and the weight average molecular weight (Mw) by 84% and 42%, respectively, as shown by gel permeation chromatography (GPC), while scanning electron microscopy showed cracks at the surface of the PU-PE films as a result of enzymatic surface erosion. Furthermore, Fourier Transform Infrared (FTIR) analysis showed a reduction in the peaks at 1725 cm−1, 1164 cm−1 and 1139 cm−1, indicating that the enzyme preferentially hydrolysed ester bonds, as also supported by the nuclear magnetic resonance spectroscopy (NMR) results. Liquid chromatography time-of-flight/mass spectrometry (LC-MS-Tof) analysis revealed the presence in the incubation supernatant of all of the monomeric constituents of the polymer, thus suggesting that the enzyme was able to hydrolyse both the ester and the urethane bonds of the polymer.
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Affiliation(s)
- Federico Di Bisceglie
- Department of Agrobiotechnology, University of Natural Resources and Life Sciences Vienna, 3430 Tulln an der Donau, Austria; (F.D.B.); (R.V.); (G.M.G.)
| | - Felice Quartinello
- Department of Agrobiotechnology, University of Natural Resources and Life Sciences Vienna, 3430 Tulln an der Donau, Austria; (F.D.B.); (R.V.); (G.M.G.)
- Austrian Centre of Industrial Biotechnology, 3430 Tulln an der Donau, Austria
- Correspondence: (F.Q.); (A.P.)
| | - Robert Vielnascher
- Department of Agrobiotechnology, University of Natural Resources and Life Sciences Vienna, 3430 Tulln an der Donau, Austria; (F.D.B.); (R.V.); (G.M.G.)
| | - Georg M. Guebitz
- Department of Agrobiotechnology, University of Natural Resources and Life Sciences Vienna, 3430 Tulln an der Donau, Austria; (F.D.B.); (R.V.); (G.M.G.)
- Austrian Centre of Industrial Biotechnology, 3430 Tulln an der Donau, Austria
| | - Alessandro Pellis
- Department of Agrobiotechnology, University of Natural Resources and Life Sciences Vienna, 3430 Tulln an der Donau, Austria; (F.D.B.); (R.V.); (G.M.G.)
- Austrian Centre of Industrial Biotechnology, 3430 Tulln an der Donau, Austria
- Dipartimento di Chimica e Chimica Industriale, Universitá degli Studi di Genova, Via Dodecaneso 31, 16146 Genova, Italy
- Correspondence: (F.Q.); (A.P.)
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Niesiobędzka J, Głowińska E, Datta J. Eco-Friendly Ether and Ester-Urethane Prepolymer: Structure, Processing and Properties. Int J Mol Sci 2021; 22:ijms222212207. [PMID: 34830089 PMCID: PMC8625470 DOI: 10.3390/ijms222212207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 11/05/2021] [Accepted: 11/06/2021] [Indexed: 11/19/2022] Open
Abstract
This study concerns bio-based urethane prepolymers. The relationship between the chemical structure and the thermal and processing parameters of bio-based isocyanate-terminated ether and ester-urethane prepolymers was investigated. Bio-based prepolymers were obtained with the use of bio-monomers such as bio-based diisocyanate, bio-based polyether polyol or polyester polyols. In addition to their composition, the bio-based prepolymers were different in the content of iso-cyanate groups content (ca. 6 and 8%). The process of pre-polymerization and the obtained bio-based prepolymers were analyzed by determining the content of unreacted NCO groups, Fourier transform infrared spectroscopy, proton nuclear magnetic resonance, thermogravimetry, and rheological measurements. The research conducted facilitated the evaluation of the properties and processability of urethane prepolymers based on natural components. The results indicate that a significant impact on the processability has the origin the polyol ingredient as well as the NCO content. The thermal stability of all of the prepolymers is similar. A prepolymer based on a poly-ether polyol is characterized by a lower viscosity at a lower temperature than the prepolymer based on a polyester polyol. The viscosity value depends on the NCO content.
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Nonedible Vegetable Oil-Based Polyols in Anticorrosive and Antimicrobial Polyurethane Coatings. Polymers (Basel) 2021; 13:polym13183149. [PMID: 34578051 PMCID: PMC8473091 DOI: 10.3390/polym13183149] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 09/06/2021] [Accepted: 09/14/2021] [Indexed: 12/31/2022] Open
Abstract
This review describes the preparation of nonedible vegetable oil (NEVO)-based polyols and their application in anticorrosive and antimicrobial polyurethane (PU) coatings. PUs are a class of versatile polymers made up of polyols and isocyanates. Renewable vegetable oils are promising resources for the development of ecofriendly polyols and the corresponding PUs. Researchers are interested in NEVOs because they provide an alternative to critical global food issues. The cultivation of plant resources for NEVOs can also be popularized globally by utilizing marginal land or wastelands. Polyols can be prepared from NEVOs following different conversion routes, including esterification, etherification, amidation, ozonolysis, hydrogenation, hydroformylation, thio-ene, acrylation, and epoxidation. These polyols can be incorporated into the PU network for coating applications. Metal surface corrosion and microbial growth are severe problems that cause enormous economic losses annually. These problems can be overcome by NEVO-based PU coatings, incorporating functional ingredients such as corrosion inhibitors and antimicrobial agents. The preferred coatings have great potential in high performance, smart, and functional applications, including in biomedical fields, to cope with emerging threats such as COVID-19.
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Tuan Ismail TNM, Ibrahim NA, Poo Palam KD, Sendijarevic A, Sendijarevic I, M. Schiffman C, Hoong SS, Mohd Noor MA, Yeong SK, Abd. Malek E, Zainuddin N, Sendijarevic V. Improved dynamic properties of thermoplastic polyurethanes made from
co‐monomeric
polyester polyol soft segments based on azelaic acid. J Appl Polym Sci 2021. [DOI: 10.1002/app.50815] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
| | - Nor Azowa Ibrahim
- Department of Chemistry, Faculty of Science University Putra Malaysia Serdang, Selangor Malaysia
| | - Kosheela Devi Poo Palam
- Advanced Oleochemical Technology Division Malaysian Palm Oil Board Kajang, Selangor Malaysia
| | - Aisa Sendijarevic
- Research and Development Department Troy Polymers Inc. Madison Heights Michigan USA
| | - Ibrahim Sendijarevic
- Research and Development Department Troy Polymers Inc. Madison Heights Michigan USA
| | - Christi M. Schiffman
- Research and Development Department Troy Polymers Inc. Madison Heights Michigan USA
| | - Seng Soi Hoong
- Advanced Oleochemical Technology Division Malaysian Palm Oil Board Kajang, Selangor Malaysia
| | - Mohd Azmil Mohd Noor
- Advanced Oleochemical Technology Division Malaysian Palm Oil Board Kajang, Selangor Malaysia
| | - Shoot Kian Yeong
- Advanced Oleochemical Technology Division Malaysian Palm Oil Board Kajang, Selangor Malaysia
| | - Emilia Abd. Malek
- Department of Chemistry, Faculty of Science University Putra Malaysia Serdang, Selangor Malaysia
| | - Norhazlin Zainuddin
- Department of Chemistry, Faculty of Science University Putra Malaysia Serdang, Selangor Malaysia
| | - Vahid Sendijarevic
- Research and Development Department Troy Polymers Inc. Madison Heights Michigan USA
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Kasprzyk P, Głowińska E, Datta J. Structure and properties comparison of poly(ether-urethane)s based on nonpetrochemical and petrochemical polyols obtained by solvent free two-step method. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110673] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Allami T, Alamiery A, Nassir MH, Kadhum AH. Investigating Physio-Thermo-Mechanical Properties of Polyurethane and Thermoplastics Nanocomposite in Various Applications. Polymers (Basel) 2021; 13:2467. [PMID: 34372071 PMCID: PMC8347130 DOI: 10.3390/polym13152467] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 03/21/2021] [Accepted: 03/22/2021] [Indexed: 12/03/2022] Open
Abstract
The effect of the soft and hard polyurethane (PU) segments caused by the hydrogen link in phase-separation kinetics was studied to investigate the morphological annealing of PU and thermoplastic polyurethane (TPU). The significance of the segmented PUs is to achieve enough stability for further applications in biomedical and environmental fields. In addition, other research focuses on widening the plastic features and adjusting the PU-polyimide ratio to create elastomer of the poly(urethane-imide). Regarding TPU- and PU-nanocomposite, numerous studies investigated the incorporation of inorganic nanofillers such as carbon or clay to incorporating TPU-nanocomposite in several applications. Additionally, the complete exfoliation was observed up to 5% and 3% of TPU-clay modified with 12 amino lauric acid and benzidine, respectively. PU-nanocomposite of 5 wt.% Cloisite®30B showed an increase in modulus and tensile strength by 110% and 160%, respectively. However, the nanocomposite PU-0.5 wt.% Carbone Nanotubes (CNTs) show an increase in the tensile modulus by 30% to 90% for blown and flat films, respectively. Coating PU influences stress-strain behavior because of the interaction between the soft segment and physical crosslinkers. The thermophysical properties of the TPU matrix have shown two glass transition temperatures (Tg's) corresponding to the soft and the hard segment. Adding a small amount of tethered clay shifts Tg for both segments by 44 °C and 13 °C, respectively, while adding clay from 1 to 5 wt.% results in increasing the thermal stability of TPU composite from 12 to 34 °C, respectively. The differential scanning calorimetry (DSC) was used to investigate the phase structure of PU dispersion, showing an increase in thermal stability, solubility, and flexibility. Regarding the electrical properties, the maximum piezoresistivity (10 S/m) of 7.4 wt.% MWCNT was enhanced by 92.92%. The chemical structure of the PU-CNT composite has shown a degree of agglomeration under disruption of the sp2 carbon structure. However, with extended graphene loading to 5.7 wt.%, piezoresistivity could hit 10-1 S/m, less than 100 times that of PU. In addition to electrical properties, the acoustic behavior of MWCNT (0.35 wt.%)/SiO2 (0.2 wt.%)/PU has shown sound absorption of 80 dB compared to the PU foam sample. Other nanofillers, such as SiO2, TiO2, ZnO, Al2O3, were studied showing an improvement in the thermal stability of the polymer and enhancing scratch and abrasion resistance.
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Affiliation(s)
- Tyser Allami
- Department of Chemical and Process Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, Bangi 43600, Selangor Darul Ehsan, Malaysia; (A.A.); (M.H.N.); (A.H.K.)
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Fabrication of Enhanced Mechanical Properties and Intrinsic Flame-Retardant Polyurethane Elastomer Containing 4-(Phenylethynyl) Di(Ethylene Glycol) Phthalate. Polymers (Basel) 2021; 13:polym13152388. [PMID: 34371995 PMCID: PMC8348043 DOI: 10.3390/polym13152388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 07/08/2021] [Accepted: 07/09/2021] [Indexed: 12/02/2022] Open
Abstract
In this study, the aromatic acetylene compound 4-(phenylethynyl) di(ethylene glycol) phthalate (PEPE) was used as a chain extender, partially replacing 1,4-butanediol. To synthesize an intrinsic flame-retardant thermoplastic polyurethane elastomer (TPU) with an aromatic acetylene structure, PEPE was synthesized by a two-step polymerization. The flame retardancy, thermal stability, and mechanical properties of TPU were studied. The microstructure of TPU char was investigated by scanning electron microscopy to analyze the flame-retardant mechanism. The tensile strength of TPU containing 1.35 wt% PEPE was 39.2 MPa, which was almost twice as much as neat TPU, showed a dramatic decrease in the peak heat release rate and total heat release, and declined by 46.2% and 24.5%, respectively. After the flame-retardant TPU burned, a cross-linked network foaming char structure was formed. The results showed that PEPE improved the mechanical properties of TPU and conferred good stability that promoted the formation of charcoal and reduced heat release during the combustion of TPU.
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36
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Kasprzyk P, Głowińska E, Parcheta-Szwindowska P, Rohde K, Datta J. Green TPUs from Prepolymer Mixtures Designed by Controlling the Chemical Structure of Flexible Segments. Int J Mol Sci 2021; 22:ijms22147438. [PMID: 34299058 PMCID: PMC8305971 DOI: 10.3390/ijms22147438] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 07/06/2021] [Accepted: 07/07/2021] [Indexed: 12/03/2022] Open
Abstract
This study concerns green thermoplastic polyurethanes (TPU) obtained by controlling the chemical structure of flexible segments. Two types of bio-based polyether polyols—poly(trimethylene glycol)s—with average molecular weights ca. 1000 and 2700 Da were used (PO3G1000 and PO3G2700, respectively). TPUs were prepared via a two-step method. Hard segments consisted of 4,4′-diphenylmethane diisocyanates and the bio-based 1,4-butanodiol (used as a chain extender and used to control the [NCO]/[OH] molar ratio). The impacts of the structure of flexible segments, the amount of each type of prepolymer, and the [NCO]/[OH] molar ratio on the chemical structure and selected properties of the TPUs were verified. By regulating the number of flexible segments of a given type, different selected properties of TPU materials were obtained. Thermal analysis confirmed the high thermal stability of the prepared materials and revealed that TPUs based on a higher amount of prepolymer synthesized from PO3G2700 have a tendency for cold crystallization. An increase in the amount of PO3G1000 at the flexible segments caused an increase in the tensile strength and decrease in the elongation at break. Melt flow index results demonstrated that the increase in the amount of prepolymer based on PO3G1000 resulted in TPUs favorable in terms of machining.
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Affiliation(s)
| | | | | | | | - Janusz Datta
- Correspondence: (P.K.); (J.D.); Tel.: +48-58-347-14-14 (J.D.)
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37
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Ge C, Wang G, Zhao J, Zhao G. Poly(ether‐block‐amide) membrane with deformability and adjustable surface hydrophilicity for water purification. POLYM ENG SCI 2021. [DOI: 10.1002/pen.25742] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Chengbiao Ge
- Key Laboratory for Liquid‐Solid Structural Evolution and Processing of Materials (Ministry of Education) Shandong University Jinan People's Republic of China
| | - Guilong Wang
- Key Laboratory for Liquid‐Solid Structural Evolution and Processing of Materials (Ministry of Education) Shandong University Jinan People's Republic of China
| | - Jinchuan Zhao
- Key Laboratory for Liquid‐Solid Structural Evolution and Processing of Materials (Ministry of Education) Shandong University Jinan People's Republic of China
| | - Guoqun Zhao
- Key Laboratory for Liquid‐Solid Structural Evolution and Processing of Materials (Ministry of Education) Shandong University Jinan People's Republic of China
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38
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Talapatra A, Datta D. Estimation of improvement in elastic moduli for functionalised defective graphene-based thermoplastic polyurethane nanocomposites: a molecular dynamics approach. MOLECULAR SIMULATION 2021. [DOI: 10.1080/08927022.2021.1935927] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Animesh Talapatra
- Department of Mechanical Engineering, Indian Institute of Engineering Science and Technology, Shibpur, Howrah, India
| | - Debasis Datta
- Department of Mechanical Engineering, Indian Institute of Engineering Science and Technology, Shibpur, Howrah, India
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39
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Zagożdżon I, Parcheta P, Datta J. Novel Cast Polyurethanes Obtained by Using Reactive Phosphorus-Containing Polyol: Synthesis, Thermal Analysis and Combustion Behaviors. MATERIALS 2021; 14:ma14112699. [PMID: 34063787 PMCID: PMC8196663 DOI: 10.3390/ma14112699] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 05/14/2021] [Accepted: 05/17/2021] [Indexed: 11/16/2022]
Abstract
Phosphorus-containing polyol applications in polyurethane synthesis can prevent volatilization of flame retardants and their migration on the surface of a material. In this work, novel cast polyurethanes were prepared by a one-step method with the use of different amounts of phosphorus-containing polyol, 4,4′–diphenylmethane diisocyanate and 1,4-butanediol. The chemical structure, thermal, physicochemical and mechanical properties and flame resistance of the prepared materials were investigated. The results obtained for cast flame-retarded polyurethanes were compared with cast polyurethane synthesized with commonly known polyether polyol. It has been shown that with an increasing amount of phosphorus content to polyurethane’s chemical structure, an increased flame resistance and char yield were found during combustion tests. Phosphorus polyol worked in both the condensed (reduced heat and mass exchange) and gas phase (inhibition of flame propagation during burning). The obtained materials contained phosphorus polyol, indicating higher thermal stability in an oxidative environment than an inert atmosphere.
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40
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Su X, Jia S, Cao L, Yu D. High performance polylactic acid/thermoplastic polyurethane blends with in‐situ fibrillated morphology. J Appl Polym Sci 2021. [DOI: 10.1002/app.51014] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Xiaolong Su
- School of Chemistry, State Key Laboratory of Electrical Insulation and Power Equipments Xi'an Jiaotong University Xi'an Shaanxi China
| | - Shikui Jia
- School of Materials Science and Engineering Shaanxi University of Technology Hanzhong Shaanxi China
| | - Le Cao
- School of Materials Science and Engineering Shaanxi University of Technology Hanzhong Shaanxi China
| | - Demei Yu
- School of Chemistry, State Key Laboratory of Electrical Insulation and Power Equipments Xi'an Jiaotong University Xi'an Shaanxi China
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41
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Basak S. Thermoplastic elastomers in biomedical industry – evolution and current trends. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2021. [DOI: 10.1080/10601325.2021.1922086] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Sayan Basak
- Department of Polymer Science and Technology, University of Calcutta, Kolkata, West Bengal, India
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42
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The Green Approach to the Synthesis of Bio-Based Thermoplastic Polyurethane Elastomers with Partially Bio-Based Hard Blocks. MATERIALS 2021; 14:ma14092334. [PMID: 33946420 PMCID: PMC8125134 DOI: 10.3390/ma14092334] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 04/26/2021] [Accepted: 04/28/2021] [Indexed: 11/25/2022]
Abstract
Bio-based polymeric materials and green routes for their preparation are current issues of many research works. In this work, we used the diisocyanate mixture based on partially bio-based diisocyanate origin and typical petrochemical diisocyanate for the preparation of novel bio-based thermoplastic polyurethane elastomers (bio-TPUs). We studied the influence of the diisocyanate mixture composition on the chemical structure, thermal, thermomechanical, and mechanical properties of obtained bio-TPUs. Diisocyanate mixture and bio-based 1,4-butanediol (as a low molecular chain extender) created bio-based hard blocks (HS). The diisocyanate mixture contained up to 75 wt % of partially bio-based diisocyanate. It is worth mentioning that the structure and amount of HS impact the phase separation, processing, thermal or mechanical properties of polyurethanes. The soft blocks (SS) in the bio-TPU’s materials were built from α,ω-oligo(ethylene-butylene adipate) diol. Hereby, bio-TPUs differed in hard segments content (c.a. 30; 34; 40, and 53%). We found that already increase of bio-based diisocyanate content of the bio-TPU impact the changes in their thermal stability which was measured by TGA. Based on DMTA results we observed changes in the viscoelastic behavior of bio-TPUs. The DSC analysis revealed decreasing in glass transition temperature and melting temperature of hard segments. In general, obtained materials were characterized by good mechanical properties. The results confirmed the validity of undertaken research problem related to obtaining bio-TPUs consist of bio-based hard building blocks. The application of partially bio-based diisocyanate mixtures and bio-based chain extender for bio-TPU synthesis leads to sustainable chemistry. Therefore the total level of “green carbons” increases with the increase of bio-based diisocyanate content in the bio-TPU structure. Obtained results constitute promising data for further works related to the preparation of fully bio-based thermoplastic polyurethane elastomers and development in the field of bio-based polymeric materials.
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Dall Agnol L, Ornaghi HL, Monticeli F, Dias FTG, Bianchi O. Polyurethanes synthetized with polyols of distinct molar masses: Use of the artificial neural network for prediction of degree of polymerization. POLYM ENG SCI 2021. [DOI: 10.1002/pen.25702] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Lucas Dall Agnol
- Postgraduate Program in Materials Science and Engineering (PGMAT) University of Caxias do Sul (UCS) Caxias do Sul Rio Grande do Sul Brazil
| | - Heitor Luiz Ornaghi
- Federal University for Latin American Integration (UNILA) Foz do Iguaçu Parana Brazil
| | - Francisco Monticeli
- Department of Materials and Technology School of Engineering, São Paulo State University (Unesp) Guaratinguetá Brazil
| | - Fernanda Trindade Gonzalez Dias
- Postgraduate Program in Technology and Materials Engineering (PPG‐TEM) Federal Institute of Education, Science and Technology of Rio Grande do Sul (IFRS) Campus Feliz Rio Grande do Sul Brazil
| | - Otávio Bianchi
- Postgraduate Program in Materials Science and Engineering (PGMAT) University of Caxias do Sul (UCS) Caxias do Sul Rio Grande do Sul Brazil
- Department of Materials Engineering (DEMAT) Federal University of Rio Grande do Sul (UFRGS) Porto Alegre Rio Grande do Sul Brazil
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Phung Hai TA, Tessman M, Neelakantan N, Samoylov AA, Ito Y, Rajput BS, Pourahmady N, Burkart MD. Renewable Polyurethanes from Sustainable Biological Precursors. Biomacromolecules 2021; 22:1770-1794. [PMID: 33822601 DOI: 10.1021/acs.biomac.0c01610] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Due to the depletion of fossil fuels, higher oil prices, and greenhouse gas emissions, the scientific community has been conducting an ongoing search for viable renewable alternatives to petroleum-based products, with the anticipation of increased adaptation in the coming years. New academic and industrial developments have encouraged the utilization of renewable resources for the development of ecofriendly and sustainable materials, and here, we focus on those advances that impact polyurethane (PU) materials. Vegetable oils, algae oils, and polysaccharides are included among the major renewable resources that have supported the development of sustainable PU precursors to date. Renewable feedstocks such as algae have the benefit of requiring only sunshine, carbon dioxide, and trace minerals to generate a sustainable biomass source, offering an improved carbon footprint to lessen environmental impacts. Incorporation of renewable content into commercially viable polymer materials, particularly PUs, has increasing and realistic potential. Biobased polyols can currently be purchased, and the potential to expand into new monomers offers exciting possibilities for new product development. This Review highlights the latest developments in PU chemistry from renewable raw materials, as well as the various biological precursors being employed in the synthesis of thermoset and thermoplastic PUs. We also provide an overview of literature reports that focus on biobased polyols and isocyanates, the two major precursors to PUs.
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Affiliation(s)
- Thien An Phung Hai
- Department of Chemistry and Biochemistry, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093-0358, United States
| | - Marissa Tessman
- Algenesis Materials Inc., 1238 Sea Village Drive, Cardiff, California 92007, United States
| | - Nitin Neelakantan
- Algenesis Materials Inc., 1238 Sea Village Drive, Cardiff, California 92007, United States
| | - Anton A Samoylov
- Department of Chemistry and Biochemistry, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093-0358, United States
| | - Yuri Ito
- Department of Chemistry and Biochemistry, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093-0358, United States
| | - Bhausaheb S Rajput
- Food and Fuel for the 21st Century, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093-0435, United States
| | - Naser Pourahmady
- Department of Chemistry and Biochemistry, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093-0358, United States
| | - Michael D Burkart
- Department of Chemistry and Biochemistry, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093-0358, United States.,Algenesis Materials Inc., 1238 Sea Village Drive, Cardiff, California 92007, United States.,Food and Fuel for the 21st Century, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093-0435, United States
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Zebiri H, Van Den Berghe H, Sayegh S, Chammas PE, Pompée C, Chammas M, Garric X. Synthesis of PLA-poly(ether urethane)-PLA copolymers and design of biodegradable anti-adhesive membranes for orthopaedic applications. J Mater Chem B 2021; 9:832-845. [PMID: 33347521 DOI: 10.1039/d0tb02545c] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Peritendinous adhesions cause chronic pain and disability. Leading causes are trauma to tendons and surrounding tissues and immobilization after surgery. Adhesions occur between 24 hours to 6 weeks after surgery. Anti-adhesion barriers are currently the best option available to prevent peritendinous adhesions, but are ineffective and difficult to use. We developed an anti-adhesive membrane that can be easily applied during tendon surgery and effectively prevent adhesions. The membrane is based on a new triblock copolymer, is non-toxic, can be bio-eliminated, and has a degradation rate of more than 6 weeks for optimal anti-adhesion effect. We synthesized and characterized poly(ether urethane) (PEU) from poly(ethylene glycol). Triblock copolymers poly(lactic acid)-PEU-poly(lactic acid) (PLA-PEU-PLA) were then synthesized from PEU with PLA blocks of different lengths, and characterized. The membranes were shaped by hot molding and their mechanical properties, contact angle, water uptake, the kinetics of in vitro degradation and cytotoxicity were studied. Mechanical properties were developed according to the needs of orthopaedic surgeons. Results showed that membranes maintained their filmogenic integrity, have a degradation rate for optimal adhesion prevention, can be bioeliminated and biocompatible suggesting that they could be safely and effectively used as anti-adhesion orthopaedic devices. These results support the use of PLA-PEU-PLA membranes as a medical device, however, the effectiveness of the membranes in vivo needs to be further evaluated. A future study using an in vivo rat model of postoperative peritendinous adhesions is currently being developed.
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Affiliation(s)
- Hadda Zebiri
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247, CNRS, Université Montpellier, ENSCM, Faculté de Pharmacie, Bâtiment I, 15 Avenue Charles Flahault, BP14491, 34093 Montpellier Cedex 5, France.
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Affiliation(s)
- Yuan Yao
- School of Materials Science and Engineering Tianjin Key Laboratory of Composite and Functional Materials Tianjin University Tianjin 300350 China
| | - Meng Xiao
- School of Materials Science and Engineering Tianjin Key Laboratory of Composite and Functional Materials Tianjin University Tianjin 300350 China
| | - Wenguang Liu
- School of Materials Science and Engineering Tianjin Key Laboratory of Composite and Functional Materials Tianjin University Tianjin 300350 China
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Thermal Behavior and Morphology of Thermoplastic Polyurethane Derived from Different Chain Extenders of 1,3- and 1,4-Butanediol. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11020698] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
In this study, when deriving thermoplastic polyurethane (TPU), the researchers replaced 1,4-butanediol (1,4-BDO) with 1,3-butanediol (1,3-BDO) as a chain extender and examined how the structure of the chain extender affected the final polymers. Regarding the raw materials for polymerization, three types of commercial polyols with the same molecular weight (Mn = 1000 g/mol), namely, poly (butyl acrylate) (PBA), poly (tetramethylene ether) glycol (PTMG), and polycarbonate diol (PCDL) were used. These polyols were used in conjunction with butanediol and 4,4’-methylene diphenyl diisocyanate. Three groups of TPUs were successfully synthesized using one-shot solvent-free bulk polymerization. Compared with TPUs polymerized using 1,4-BDO, materials polymerized using 1,3-BDO are more transparent and viscous. Structural analysis revealed that no substantial differences between the final structures of the TPUs were present when different chain extenders were used. Thermal analysis indicated that compared with TPUs polymerized using 1,4-BDO, the glass transition temperature of those with 1,3-BDO was 15 °C higher. Examination of microphase separation in the structure by using morphological analysis revealed that compared with TPUs synthesized using 1,4-BDO, PBA, and PTMG synthesized using 1,3-BDO were relatively separated. PCDL synthesized using 1,3-BDO exhibited no morphological difference. Rheological analysis indicated PCDL synthesized using either 1,4-BDO or 1,3-BDO did not exhibit any obvious differences. In conclusion, TPUs synthesized using PCDL and 1,3-BDO exhibited thermal plasticity at room temperature (15–20 °C). Their basic application could be extended to the development of smart materials. In terms of further application, they could be used in shape memory and temperature-sensitive high molecular polymers.
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Warlin N, Nilsson E, Guo Z, Mankar SV, Valsange NG, Rehnberg N, Lundmark S, Jannasch P, Zhang B. Synthesis and melt-spinning of partly bio-based thermoplastic poly(cycloacetal-urethane)s toward sustainable textiles. Polym Chem 2021. [DOI: 10.1039/d1py00450f] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Partly bio-based thermoplastic poly(cycloacetal-urethane)s synthesized and melt-spun into textile fibres that can be potentially chemically recycled.
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Affiliation(s)
- Niklas Warlin
- Centre of Analysis and Synthesis, Department of Chemistry, Lund University, P.O. Box 124, SE-22100 Lund, Sweden
| | - Erik Nilsson
- Plasman, Molndalsvagen 36, 412 63 Gothenburg, Sweden
- Department of Chemistry, Biomaterials and Textile, RISE - Research Institutes of Sweden, Mölndal, SE-43153, Sweden
| | - Zengwei Guo
- Department of Chemistry, Biomaterials and Textile, RISE - Research Institutes of Sweden, Mölndal, SE-43153, Sweden
| | - Smita V. Mankar
- Centre of Analysis and Synthesis, Department of Chemistry, Lund University, P.O. Box 124, SE-22100 Lund, Sweden
| | - Nitin G. Valsange
- Centre of Analysis and Synthesis, Department of Chemistry, Lund University, P.O. Box 124, SE-22100 Lund, Sweden
| | - Nicola Rehnberg
- Centre of Analysis and Synthesis, Department of Chemistry, Lund University, P.O. Box 124, SE-22100 Lund, Sweden
- Strategic R&D, Bona AB, Box 210 74, 200 21 Malmö, Sweden
| | - Stefan Lundmark
- Perstorp AB, Innovation, Perstorp Industrial Park, 284 80 Perstorp, Sweden
| | - Patric Jannasch
- Centre of Analysis and Synthesis, Department of Chemistry, Lund University, P.O. Box 124, SE-22100 Lund, Sweden
| | - Baozhong Zhang
- Centre of Analysis and Synthesis, Department of Chemistry, Lund University, P.O. Box 124, SE-22100 Lund, Sweden
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Huang YC, Huang YH, Chen LY, Dai CA, Dai SA, Chen YH, Wu CH, Jeng RJ. Robust thermoplastic polyurethane elastomers prepared from recycling polycarbonate. POLYMER 2021. [DOI: 10.1016/j.polymer.2020.123296] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Melt-Spun Fibers for Textile Applications. MATERIALS 2020; 13:ma13194298. [PMID: 32993085 PMCID: PMC7579636 DOI: 10.3390/ma13194298] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 09/18/2020] [Accepted: 09/23/2020] [Indexed: 11/30/2022]
Abstract
Textiles have a very long history, but they are far from becoming outdated. They gain new importance in technical applications, and man-made fibers are at the center of this ongoing innovation. The development of high-tech textiles relies on enhancements of fiber raw materials and processing techniques. Today, melt spinning of polymers is the most commonly used method for manufacturing commercial fibers, due to the simplicity of the production line, high spinning velocities, low production cost and environmental friendliness. Topics covered in this review are established and novel polymers, additives and processes used in melt spinning. In addition, fundamental questions regarding fiber morphologies, structure-property relationships, as well as flow and draw instabilities are addressed. Multicomponent melt-spinning, where several functionalities can be combined in one fiber, is also discussed. Finally, textile applications and melt-spun fiber specialties are presented, which emphasize how ongoing research efforts keep the high value of fibers and textiles alive.
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