101
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Zhang Z, Corrigan N, Boyer C. A Photoinduced Dual-Wavelength Approach for 3D Printing and Self-Healing of Thermosetting Materials. Angew Chem Int Ed Engl 2021; 61:e202114111. [PMID: 34859952 DOI: 10.1002/anie.202114111] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Indexed: 11/07/2022]
Abstract
Vat photopolymerization-based 3D printing techniques have been widely used to produce high-resolution 3D thermosetting materials. However, the lack of repairability of these thermosets leads to the production of waste. In this study, reversible addition fragmentation chain transfer (RAFT) agents are incorporated into resin formulations to allow visible light (405 nm) mediated 3D printing of materials with self-healing capabilities. The self-healing process is based on the reactivation of RAFT agent embedded in the thermosets under UV light (365 nm), which enables reformation of the polymeric network. The self-healing process can be performed at room temperature without prior deoxygenation. The impact of the type and concentration of RAFT agents in the polymer network on the healing efficiency is explored. Resins containing RAFT agents enable 3D printing of thermosets with self-healing properties, broadening the scope of future applications for polymeric thermosets in various fields.
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Affiliation(s)
- Zhiheng Zhang
- Cluster for Advanced Macromolecular Design (CAMD), School of Chemical Engineering, University of New South Wales, Sydney, NSW 2052, Australia
| | - Nathaniel Corrigan
- Cluster for Advanced Macromolecular Design (CAMD) and Australian Centre for NanoMedicine, School of Chemical Engineering, University of New South Wales, Sydney, NSW 2052, Australia
| | - Cyrille Boyer
- Cluster for Advanced Macromolecular Design (CAMD) and Australian Centre for NanoMedicine, School of Chemical Engineering, University of New South Wales, Sydney, NSW 2052, Australia
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102
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Li S, Lorandi F, Wang H, Liu T, Whitacre JF, Matyjaszewski K. Functional polymers for lithium metal batteries. Prog Polym Sci 2021. [DOI: 10.1016/j.progpolymsci.2021.101453] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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103
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Wagner RJ, Hobbs E, Vernerey FJ. A network model of transient polymers: exploring the micromechanics of nonlinear viscoelasticity. SOFT MATTER 2021; 17:8742-8757. [PMID: 34528646 DOI: 10.1039/d1sm00753j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Dynamic networks contain crosslinks that re-associate after disconnecting, imparting them with viscoelastic properties. While continuum approaches have been developed to analyze their mechanical response, these approaches can only describe their evolution in an average sense, omitting local, stochastic mechanisms that are critical to damage initiation or strain localization. To address these limitations, we introduce a discrete numerical model that mesoscopically coarse-grains the individual constituents of a dynamic network to predict its mechanical and topological evolution. Each constituent consists of a set of flexible chains that are permanently cross-linked at one end and contain reversible binding sites at their free ends. We incorporate nonlinear force-extension of individual chains via a Langevin model, slip-bond dissociation through Eyring's model, and spatiotemporally-dependent bond attachment based on scaling theory. Applying incompressible, uniaxial tension to representative volume elements at a range of constant strain rates and network connectivities, we then compare the mechanical response of these networks to that predicted by the transient network theory. Ultimately, we find that the idealized continuum approach remains suitable for networks with high chain concentrations when deformed at low strain rates, yet the mesoscale model proves necessary for the exploration of localized stochastic events, such as variability of the bond kinetics, or the nucleation of micro-cavities that likely conceive damage and fracture.
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Affiliation(s)
- Robert J Wagner
- Department of Mechanical Engineering, Program of Materials Science and Engineering, University of Colorado, Boulder, USA.
| | - Ethan Hobbs
- Department of Mechanical Engineering, Program of Materials Science and Engineering, University of Colorado, Boulder, USA.
| | - Franck J Vernerey
- Department of Mechanical Engineering, Program of Materials Science and Engineering, University of Colorado, Boulder, USA.
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104
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Payne J, Jones MD. The Chemical Recycling of Polyesters for a Circular Plastics Economy: Challenges and Emerging Opportunities. CHEMSUSCHEM 2021; 14:4041-4070. [PMID: 33826253 PMCID: PMC8518041 DOI: 10.1002/cssc.202100400] [Citation(s) in RCA: 78] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 04/01/2021] [Indexed: 05/05/2023]
Abstract
Whilst plastics have played an instrumental role in human development, growing environmental concerns have led to increasing public scrutiny and demands for outright bans. This has stimulated considerable research into renewable alternatives, and more recently, the development of alternative waste management strategies. Herein, the aim was to highlight recent developments in the catalytic chemical recycling of two commercial polyesters, namely poly(lactic acid) (PLA) and poly(ethylene terephthalate) (PET). The concept of chemical recycling is first introduced, and associated opportunities/challenges are discussed within the context of the governing depolymerisation thermodynamics. Chemical recycling methods for PLA and PET are then discussed, with a particular focus on upcycling and the use of metal-based catalysts. Finally, the attention shifts to the emergence of new materials with the potential to modernise the plastics economy. Emerging opportunities and challenges are discussed within the context of industrial feasibility.
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Affiliation(s)
- Jack Payne
- Centre for Sustainable and Circular TechnologiesUniversity of Bath Claverton DownBathBA2 7AYUK
| | - Matthew D. Jones
- Department of ChemistryUniversity of Bath Claverton DownBathBA2 7AYUK
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105
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Agubata CO, Mbah MA, Akpa PA, Ugwu G. Application of self-healing, swellable and biodegradable polymers for wound treatment. J Wound Care 2021; 30:IVi-IVx. [PMID: 34597167 DOI: 10.12968/jowc.2021.30.sup9a.iv] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
AIM Self-healing, swellable and biodegradable polymers are vital materials that may facilitate the different stages of wound healing. The aim of this research was to prepare wound healing films using self-healing polyvinyl alcohol (PVA), swellable hydroxypropyl methylcellulose (HPMC), biodegradable polyglycolic acid (PGA) sutures and ciprofloxacin antibiotic for improved treatment outcome. METHODS Films were formulated through aqueous-based mixing of varying amounts of polyvinyl alcohol (10-20% weight/weight (w/w)) and hydroxypropyl methylcellulose (0.5, 1% w/w) with fixed quantities of ciprofloxacin. PGA sutures were placed as grids within the wet mixtures of the polymers and ciprofloxacin, and thereafter products were air dried. The formulated films were evaluated for swelling ratio, breaking elongation, folding endurance, moisture uptake and loss, compatibility and in vitro antibiotic release. Furthermore, in vivo wound healing was studied using excision model and histopathological examinations. RESULTS Swelling ratios were above 1.0 and the films were minimally stretchable, with folding endurance greater than 500. Films were stable while moisture uptake and loss were observed to be less than 30%. Among the optimised hydrogel batches, those containing 10% w/w PVA and 1% w/w HPMC with no PGA showed the highest drug release of 73%, whereas the batches with higher PGA content showed higher percentage wound size reduction with minimal scar. The completeness of wound healing with batches containing PVA, HPMC, ciprofloxacin and PGA, along with the standard, is evident considering the massive cornification, regeneration of the epithelial front and stratum spinosum. CONCLUSION The findings show that polymer-based multifunctional composite films are suitable for use as dressings for improved wound healing.
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Affiliation(s)
- Chukwuma O Agubata
- 1 Department of Pharmaceutical Technology and Industrial Pharmacy University of Nigeria, Nsukka, Nigeria
| | - Mary A Mbah
- 1 Department of Pharmaceutical Technology and Industrial Pharmacy University of Nigeria, Nsukka, Nigeria
| | - Paul A Akpa
- 2 Department of Pharmaceutics, University of Nigeria, Nsukka, Nigeria
| | - Godwin Ugwu
- 1 Department of Pharmaceutical Technology and Industrial Pharmacy University of Nigeria, Nsukka, Nigeria
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106
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Li B, Zhu G, Hao Y, Ren T. An investigation on the performance of epoxy vitrimers based on disulfide bond. J Appl Polym Sci 2021. [DOI: 10.1002/app.51589] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Ben Li
- School of Chemistry and Chemical Engineering Northwestern Polytechnical University Xi'an China
| | - Guangming Zhu
- School of Chemistry and Chemical Engineering Northwestern Polytechnical University Xi'an China
| | - Yujia Hao
- School of Chemistry and Chemical Engineering Northwestern Polytechnical University Xi'an China
| | - Tianning Ren
- School of Chemistry and Chemical Engineering Northwestern Polytechnical University Xi'an China
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107
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Osaki M, Yonei S, Ueda C, Ikura R, Park J, Yamaguchi H, Harada A, Tanaka M, Takashima Y. Mechanical Properties with Respect to Water Content of Host–Guest Hydrogels. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c00970] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Motofumi Osaki
- Department of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
- Project Research Center for Fundamental Sciences, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Shin Yonei
- Department of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Chiharu Ueda
- Department of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Ryohei Ikura
- Department of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Junsu Park
- Department of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Hiroyasu Yamaguchi
- Department of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
- Project Research Center for Fundamental Sciences, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Akira Harada
- The Institute of Scientific and Industrial Research, Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
- Project Research Center for Fundamental Sciences, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Masaru Tanaka
- Institute for Materials Chemistry and Engineering, Kyushu University, CE41 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Yoshinori Takashima
- Department of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
- Institute for Advanced Co-Creation Studies, Osaka University, 1-1 Yamada-oka, Suita, Osaka 565-0871, Japan
- Project Research Center for Fundamental Sciences, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
- Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (OTRI), Osaka University, Suita, Osaka 565-0871, Japan
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108
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Nagahama K, Aoyama S, Ueda N, Kimura Y, Katayama T, Ono K. Biological Tissue-Inspired Living Self-Healing Hydrogels Based on Cadherin-Mediated Specific Cell-Cell Adhesion. ACS Macro Lett 2021; 10:1073-1079. [PMID: 35549121 DOI: 10.1021/acsmacrolett.1c00359] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Regarding synthetic self-healing materials, as healing reactions occur at the molecular level, bond formation occurs when healing chemicals are nanometer distances apart. However, motility of healing chemicals in materials is quite limited, permitting only passive diffusion, which reduces the chance of bond formation. By contrast, biological-tissues exhibit significant high-performance self-healing, and cadherin-mediated cell-cell adhesion is a key mechanism in the healing process. This is because cells are capable of a certain level of motility and actively migrate to damage sites, thereby achieving cell-cell adhesion with high efficacy. Here, we report biological-tissue-inspired, self-healing hydrogels in which azide-modified living cells are covalently cross-linked with alkyne-modified alginate polymers via bioorthogonal reactions. As a proof-of-concept, we demonstrate their unique self-healing capabilities originating from cadherin-mediated adhesion between cells incorporated into the gels as mobile healing mechanism. This study provides an example of self-healing material incorporating living components into a synthetic material to promote self-healing.
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Affiliation(s)
- Koji Nagahama
- Department of Nanobiochemistry, Faculty of Frontiers of Innovative Research in Science and Technology (FIRST), Konan University, 7-1-20 minatojima-Minamimachi, Kobe 650-0047, Japan
| | - Seika Aoyama
- Department of Nanobiochemistry, Faculty of Frontiers of Innovative Research in Science and Technology (FIRST), Konan University, 7-1-20 minatojima-Minamimachi, Kobe 650-0047, Japan
| | - Natsumi Ueda
- Department of Nanobiochemistry, Faculty of Frontiers of Innovative Research in Science and Technology (FIRST), Konan University, 7-1-20 minatojima-Minamimachi, Kobe 650-0047, Japan
| | - Yuka Kimura
- Department of Nanobiochemistry, Faculty of Frontiers of Innovative Research in Science and Technology (FIRST), Konan University, 7-1-20 minatojima-Minamimachi, Kobe 650-0047, Japan
| | - Tokitaka Katayama
- Department of Nanobiochemistry, Faculty of Frontiers of Innovative Research in Science and Technology (FIRST), Konan University, 7-1-20 minatojima-Minamimachi, Kobe 650-0047, Japan
| | - Kimika Ono
- Department of Nanobiochemistry, Faculty of Frontiers of Innovative Research in Science and Technology (FIRST), Konan University, 7-1-20 minatojima-Minamimachi, Kobe 650-0047, Japan
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109
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Tang ZH, Zeng H, Wei SQ, Wu SW, Guo BC. Structural Manipulation of Aminal-crosslinked Polybutadiene for Recyclable and Healable Elastomers. CHINESE JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1007/s10118-021-2626-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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110
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Li Z, Ji X, Xie H, Tang BZ. Aggregation-Induced Emission-Active Gels: Fabrications, Functions, and Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2100021. [PMID: 34216407 DOI: 10.1002/adma.202100021] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2021] [Revised: 03/14/2021] [Indexed: 05/07/2023]
Abstract
Chromophores that exhibit aggregation-induced emission (i.e., aggregation-induced emission luminogens [AIEgens]) emit intense fluorescence in their aggregated states, but show negligible emission as discrete molecular species in solution due to the changes in restriction and freedom of intramolecular motions. As solvent-swollen quasi-solids with both a compact phase and a free space, gels enable manipulation of intramolecular motions. Thus, AIE-active gels have attracted significant interest owing to their various distinctive properties and promising application potential. Herein, a comprehensive overview of AIE-active gels is provided. The fabrication strategies employed are detailed, and the applications of AIEgens are summarized. In addition, the gel functions arising from the AIE moieties are revealed, along with their structure-property relationships. Furthermore, the applications of AIE-active gels in diverse areas are illustrated. Finally, ongoing challenges and potential means to address them are discussed, along with future perspectives on AIE-active gels, with the overall aim of inspiring research on novel materials and ideas.
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Affiliation(s)
- Zhao Li
- Institute of Engineering Medicine, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing, 100081, China
| | - Xiaofan Ji
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Huilin Xie
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction and Institute for Advanced Study, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
- HKUST-Shenzhen Research Institute, No. 9 Yuexing 1st RD, South Area, Hi-tech Park Nanshan, Shenzhen, 518055, China
| | - Ben Zhong Tang
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction and Institute for Advanced Study, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
- HKUST-Shenzhen Research Institute, No. 9 Yuexing 1st RD, South Area, Hi-tech Park Nanshan, Shenzhen, 518055, China
- Center for Aggregation-Induced Emission, SCUT-HKUST Joint Research Institutes, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, China
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111
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Zhang K, Wang Z, Zhang J, Liu Y, Yan C, Hu T, Gao C, Wu Y. A highly stretchable and room temperature autonomous self-healing supramolecular organosilicon elastomer with hyperbranched structure. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110618] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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112
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Zhao D, Peng J, Jian G, Liu C, Chen H, Zhou Y, Zhou Y. Thermal Healing of Copolyacrylate Elastomer Based on Catalyst‐Free Transketalization. MACROMOL CHEM PHYS 2021. [DOI: 10.1002/macp.202100042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Dan Zhao
- School of Chemistry and Chemical Engineering Key Laboratory of Hubei Province for Coal Conversion and New Carbon Materials Wuhan University of Science and Technology Wuhan 430081 China
| | - Jiayu Peng
- School of Chemistry and Chemical Engineering Key Laboratory of Hubei Province for Coal Conversion and New Carbon Materials Wuhan University of Science and Technology Wuhan 430081 China
| | - Guodong Jian
- School of Chemistry and Chemical Engineering Key Laboratory of Hubei Province for Coal Conversion and New Carbon Materials Wuhan University of Science and Technology Wuhan 430081 China
| | - Chang Liu
- School of Chemistry and Chemical Engineering Key Laboratory of Hubei Province for Coal Conversion and New Carbon Materials Wuhan University of Science and Technology Wuhan 430081 China
| | - Hongxiang Chen
- School of Chemistry and Chemical Engineering Key Laboratory of Hubei Province for Coal Conversion and New Carbon Materials Wuhan University of Science and Technology Wuhan 430081 China
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science South‐Central University for Nationalities Wuhan 430074 China
| | - Yu Zhou
- School of Chemistry and Chemical Engineering Key Laboratory of Hubei Province for Coal Conversion and New Carbon Materials Wuhan University of Science and Technology Wuhan 430081 China
| | - Yang Zhou
- School of Textile Science and Engineering National Engineering Laboratory for Advanced Yarn and Clean Production Wuhan Textile University Wuhan 430200 China
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113
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Theoretical Characterization of New Frustrated Lewis Pairs for Responsive Materials. Polymers (Basel) 2021; 13:polym13101573. [PMID: 34068943 PMCID: PMC8155995 DOI: 10.3390/polym13101573] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 05/11/2021] [Accepted: 05/11/2021] [Indexed: 01/08/2023] Open
Abstract
In recent years, responsive materials including dynamic bonds have been widely acclaimed due to their expectation to pilot advanced materials. Within these materials, synthetic polymers have shown to be good candidates. Recently, the so-called frustrated Lewis pairs (FLP) have been used to create responsive materials. Concretely, the activation of diethyl azodicarboxylate (DEAD) by a triphenylborane (TPB) and triphenylphosphine (TPP) based FLP has been recently exploited for the production of dynamic cross-links. In this work, we computationally explore the underlying dynamic chemistry in these materials, in order to understand the nature and reversibility of the interaction between the FLP and DEAD. With this goal in mind, we first characterize the acidity and basicity of several TPB and TPP derivatives using different substituents, such as electron-donating and electron-withdrawing groups. Our results show that strong electron-donating groups increase the acidity of TPB and decrease the basicity of TPP. However, the FLP–DEAD interaction is not mainly dominated by the influence of these substituents in the acidity or basicity of the TPB or TPP systems, but by attractive or repulsive forces between substituents such as hydrogen bonds or steric effects. Based on these results, a new material is proposed based on FLP–DEAD complexes.
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114
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He M, Lehn JM. Metal Cation-Driven Dynamic Covalent Formation of Imine and Hydrazone Ligands Displaying Synergistic Co-catalysis and Auxiliary Amine Effects. Chemistry 2021; 27:7516-7524. [PMID: 33909937 DOI: 10.1002/chem.202100662] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Indexed: 11/09/2022]
Abstract
Optimizing C=N bond formation and C/N component exchange has major significance in Dynamic Covalent Chemistry (DCC). Imine and hydrazone generation from their aldehyde, amine and hydrazine components showed large accelerations in presence of AgOTf or Zn(OTf)2 , up to 104 for the Zn(II)-(p-anisidine)imine complex. Zn(OTf)2 and auxiliary p-anisidine together accelerated 630 times the formation of the Zn(II)-hydrazone complex, revealing a strong synergistic effect, traced to very fast initial formation of the reactive Zn(II)-imine complex presenting a C=N bond metallo-activated towards reaction with the hydrazine component. Reactions involving more entities showed kinetically faster and thermodynamically simpler outputs due to dynamic competition within a mixture of higher complexity. Catalytic amounts of metal salts and auxiliary amine gave similar marked rate accelerations and turnover, indicating true catalysis. The synergistic effect achieved by combining metallo- and organo-catalysis points to a powerful co-catalysis strategy of bond-formation in DCC through interconnected chemical transformations.
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Affiliation(s)
- Meixia He
- Laboratoire de Chimie Supramoléculaire, Institut de Science et d'Ingénierie Supramoléculaires, Université de Strasbourg, 8 allée Gaspard Monge, 67000, Strasbourg, France
| | - Jean-Marie Lehn
- Laboratoire de Chimie Supramoléculaire, Institut de Science et d'Ingénierie Supramoléculaires, Université de Strasbourg, 8 allée Gaspard Monge, 67000, Strasbourg, France
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115
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Chakma P, Wanasinghe SV, Morley CN, Francesconi SC, Saito K, Sparks JL, Konkolewicz D. Heat- and Light-Responsive Materials Through Pairing Dynamic Thiol-Michael and Coumarin Chemistry. Macromol Rapid Commun 2021; 42:e2100070. [PMID: 33960058 DOI: 10.1002/marc.202100070] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Revised: 03/19/2021] [Indexed: 12/21/2022]
Abstract
Covalent adaptable networks (CANs) based on the thiol-Michael (TM) linkages can be thermal and pH responsive. Here, a new vinyl-sulfone-based thiol-Michael crosslinker is synthesized and incorporated into acrylate-based CANs to achieve stable materials with dynamic properties. Because of the reversible TM linkages, excellent temperature-responsive re-healing and malleability properties are achieved. In addition, for the first time, a photoresponsive coumarin moiety is incorporated with TM-based CANs to introduce light-mediated reconfigureability and postpolymerization crosslinking. Overall, these materials can be on demand dynamic in response to heat and light but can retain mechanical stability at ambient condition.
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Affiliation(s)
- Progyateg Chakma
- Department of Chemistry and Biochemistry, Miami University, 651 E High Street, Oxford, OH, 45056, USA
| | - Shiwanka V Wanasinghe
- Department of Chemistry and Biochemistry, Miami University, 651 E High Street, Oxford, OH, 45056, USA
| | - Colleen N Morley
- Department of Chemistry and Biochemistry, Miami University, 651 E High Street, Oxford, OH, 45056, USA
| | - Sebastian C Francesconi
- Department of Chemistry and Biochemistry, Miami University, 651 E High Street, Oxford, OH, 45056, USA
| | - Kei Saito
- Graduate School of Advanced Integrated Studies in Human Survivability, Kyoto University, Higashi-Ichijo-Kan, Yoshida-nakaadachicho 1, Sakyo-ku, Kyoto, 606-8306, Japan
| | - Jessica L Sparks
- Department of Chemical, Paper and Biomedical Engineering, Miami University, 650 E High Street, Oxford, OH, 45056, USA
| | - Dominik Konkolewicz
- Department of Chemistry and Biochemistry, Miami University, 651 E High Street, Oxford, OH, 45056, USA
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116
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Wang S, Wang H, Zhang P, Xue L, Chen J, Cui J. Folding fluorescent probes for self-reporting transesterification in dynamic polymer networks. MATERIALS HORIZONS 2021; 8:1481-1487. [PMID: 34846456 DOI: 10.1039/d0mh02024a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Dynamic exchange reactions in covalent adaptable networks (CANs) are difficult to probe directly via various macroscopic mechanical methods. Herein, we report a fluorescent strategy for directly reporting the dynamic bond exchange in transesterification-based CANs by using folding molecular probes. The folding probes (PDI-dimers) consist of two perylene diimide (PDI) cores, a spacer of dynamic esters between the two PDI cores, and reactive terminal groups. During transesterification in CANs, the PDI-dimers unfold their PDI excimers to show a sharp fluorescent color change from orange to bright yellow. This visual strategy is demonstrated by a crosslinked thiol-Michael network (TMN) and poly(4-hydroxybutyl acrylate) network (PHBA). The dynamic behaviors like stress relaxation and self-stiffening in these CANs can be directly read out via the change of fluorescent color. This method can provide quantitative information and show spatiotemporal resolution and therefore, can be applied to probe various dynamic chain exchange mechanisms in crosslinked materials.
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Affiliation(s)
- Sheng Wang
- INM - Leibniz Institute for New Materials, Campus D2 2, Saarbrücken 66123, Germany.
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117
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Zhang Q, Li K, Fan L, Li N, Li J, Guo H. Rapid Self‐Healing Supramoleular Gel Constructed from Pillar[5]arene. MACROMOL CHEM PHYS 2021. [DOI: 10.1002/macp.202100018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Qian Zhang
- Key Laboratory of Green Chemical Media and Reactions Ministry of Education Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals NMPA Key Laboratory for Research and Evaluation of Innovative Drug School of Chemistry and Chemical Engineering Henan Normal University Xinxiang Henan 453007 P. R. China
| | - Ke‐Qing Li
- Key Laboratory of Green Chemical Media and Reactions Ministry of Education Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals NMPA Key Laboratory for Research and Evaluation of Innovative Drug School of Chemistry and Chemical Engineering Henan Normal University Xinxiang Henan 453007 P. R. China
- High and New Technology Research Center of Henan Academy of Sciences Zhengzhou Henan 450000 P. R. China
| | - Lu‐Lu Fan
- Key Laboratory of Green Chemical Media and Reactions Ministry of Education Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals NMPA Key Laboratory for Research and Evaluation of Innovative Drug School of Chemistry and Chemical Engineering Henan Normal University Xinxiang Henan 453007 P. R. China
| | - Na Li
- Key Laboratory of Green Chemical Media and Reactions Ministry of Education Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals NMPA Key Laboratory for Research and Evaluation of Innovative Drug School of Chemistry and Chemical Engineering Henan Normal University Xinxiang Henan 453007 P. R. China
| | - Jun Li
- Key Laboratory of Green Chemical Media and Reactions Ministry of Education Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals NMPA Key Laboratory for Research and Evaluation of Innovative Drug School of Chemistry and Chemical Engineering Henan Normal University Xinxiang Henan 453007 P. R. China
| | - Hai‐Ming Guo
- Key Laboratory of Green Chemical Media and Reactions Ministry of Education Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals NMPA Key Laboratory for Research and Evaluation of Innovative Drug School of Chemistry and Chemical Engineering Henan Normal University Xinxiang Henan 453007 P. R. China
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118
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A NIR laser induced self-healing PDMS/Gold nanoparticles conductive elastomer for wearable sensor. J Colloid Interface Sci 2021; 599:360-369. [PMID: 33962197 DOI: 10.1016/j.jcis.2021.04.117] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 04/19/2021] [Accepted: 04/22/2021] [Indexed: 12/20/2022]
Abstract
Self-healing conductive elastomers have been widely used in smart electronic devices, such as wearable sensors. However, nano fillers hinder the flow of polymer segments, which make the development of conductive elastomer with rapid repair and high ductility a challenge. In this work, thioctic acid (TA) was grafted onto amino-modified polysiloxane (PDMS-NH2) by dehydration condensation of amino group and carboxyl group. By introducing gold nanoparticles, a dynamic network based on S-Au interaction was constructed. The dynamic gold cross-linking could effectively dissipate the energy exerted by external force and improve the extensibility of conductive elastomer. In addition, S-Au interaction had a good optothermal effect, so that the elastomer rapidly healed under NIR irradiation, and the repair efficiency reached 92%. We further evaluated the performance of the conductive elastomer as a strain sensor. The sample could accurately monitor the bending of human joints and small muscle state changes. This kind of self-healable conductive elastomer based on dynamic S-Au interaction has great potential in the fields of interpersonal interaction and health monitoring.
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119
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Cui H, Wang Q, Zhang Y, Barboiu M, Zhang Y, Chen J. Double-Network Heparin Dynamic Hydrogels: Dynagels as Anti-bacterial 3D Cell Culture Scaffolds. Chemistry 2021; 27:7080-7084. [PMID: 33769604 DOI: 10.1002/chem.202005376] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Indexed: 12/26/2022]
Abstract
Double cross-linked dynamic hydrogels, dynagels, have been prepared through reversible imine bonds and supramolecular interactions, which showed good pH responsiveness, injectability, self-healing property and biocompatibility. With the further encapsulation of heparin, the obtained hydrogels exhibited good anti-bacterial activity and promotion effects for 3D cell culture.
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Affiliation(s)
- Han Cui
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Pharmaceutical Sciences, Jiangnan University, 1800 Lihu Avenue, 214122, Wuxi, P. R. China
| | - Qimeng Wang
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Pharmaceutical Sciences, Jiangnan University, 1800 Lihu Avenue, 214122, Wuxi, P. R. China
| | - Ye Zhang
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Pharmaceutical Sciences, Jiangnan University, 1800 Lihu Avenue, 214122, Wuxi, P. R. China
| | - Mihail Barboiu
- Institut Europeen des Membranes, Adaptive Supramolecular Nanosystems Group, University of Montpellier, ENSCM-CNRS, Place E. Bataillon CC047, 34095, Montpellier, France
| | - Yan Zhang
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Pharmaceutical Sciences, Jiangnan University, 1800 Lihu Avenue, 214122, Wuxi, P. R. China
| | - Jinghua Chen
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Pharmaceutical Sciences, Jiangnan University, 1800 Lihu Avenue, 214122, Wuxi, P. R. China
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120
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Gao H, Xu J, Liu S, Song Z, Zhou M, Liu S, Li F, Li F, Wang X, Wang Z, Zhang Q. Stretchable, self-healable integrated conductor based on mechanical reinforced graphene/polyurethane composites. J Colloid Interface Sci 2021; 597:393-400. [PMID: 33892422 DOI: 10.1016/j.jcis.2021.04.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Revised: 04/02/2021] [Accepted: 04/03/2021] [Indexed: 01/17/2023]
Abstract
Stretchable conductors are susceptible to wear through repeated deformation over time. Stretchable conductors with self-healing properties can increase longevity and reduce safety hazards. However, most current self-healing conductors can only repair either the conductive layer or the insulating layer. Meantime, high mechanical robustness and self-healing efficiency are exclusive especially at ambient conditions. Realizing a stretchable conductor with integral self-healing and ultra-high mechanical strength is challenging, because this requires good interfacial compatibility and adaptability of the conductive and insulating layers. We adapt a biphasic dynamic network strategy to add toughness to self-healing materials. The DOU (dimethylglyoxime-urethane polyurethane) dynamic bonds and hydrogen bonds in the soft phase enable high self-healing efficiency, while the graphene as a hard phase supports the material's superior mechanical properties. We have prepared an overall self-healing stretchable conductor through the soft phase as a self-encapsulating insulating layer. This all-solid (Tg = -49.5 °C) graphene/dimethylglyoxime-urethane polyurethane (Gr/DOU-PU) composites characteristic of both high mechanical strength (~6 MPa, ~1000%, ~48 MJ m-3), self-healing conductivity (~90%, 10 min, 25 °C) and conductivity (R□=47.8 Ω □-1, d = 0.4 mm). The conductor has excellent stability for flexible electronics and for building stress sensors.
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Affiliation(s)
- Han Gao
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China; University of Science and Technology of China, Hefei 230026, PR China
| | - Jianan Xu
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China; University of Chinese Academy of Sciences, Beijing 100039, PR China
| | - Shen Liu
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China; University of Science and Technology of China, Hefei 230026, PR China
| | - Zhongqian Song
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China
| | - Min Zhou
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China; University of Science and Technology of China, Hefei 230026, PR China
| | - Shiwei Liu
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China
| | - Fei Li
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China
| | - Fenghua Li
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China
| | - Xiaodan Wang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China
| | - Zhenxin Wang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China; University of Science and Technology of China, Hefei 230026, PR China
| | - Qixian Zhang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China; University of Science and Technology of China, Hefei 230026, PR China; School of Materials Science and Engineering, Shanghai University, Shanghai 200436, PR China.
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121
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Xu ZY, Liu HK, Wu Y, Zhang YC, Zhou W, Wang H, Zhang DW, Ma D, Li ZT. Flexible Organic Framework-Based Anthracycline Prodrugs for Enhanced Tumor Growth Inhibition. ACS APPLIED BIO MATERIALS 2021; 4:4591-4597. [DOI: 10.1021/acsabm.1c00316] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Zi-Yue Xu
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200438, China
| | - Hong-Kun Liu
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200438, China
| | - Yan Wu
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200438, China
| | - Yun-Chang Zhang
- Department of Inorganic Chemistry, School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, China
| | - Wei Zhou
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200438, China
| | - Hui Wang
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200438, China
| | - Dan-Wei Zhang
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200438, China
| | - Da Ma
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200438, China
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Zhan-Ting Li
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200438, China
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122
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Xie Z, Hu BL, Li RW, Zhang Q. Hydrogen Bonding in Self-Healing Elastomers. ACS OMEGA 2021; 6:9319-9333. [PMID: 33869912 PMCID: PMC8047772 DOI: 10.1021/acsomega.1c00462] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 03/18/2021] [Indexed: 06/12/2023]
Abstract
In the past decade, the self-healing elastomers based on multiple hydrogen bonding have attracted ample attention due to their rich chemical structures, adjustable mechanical properties, fast healing speed, and high healing efficiency. Through prolonging the service life and fast recovery of the mechanical properties, self-healing elastomers can be potentially applied in the field of wearable electronics, electronic skins, motion tracking, and health monitoring. In this perspective, we will introduce the concept and classification of self-healing materials first, then the hydrogen bonds, and the corresponding position of hydrogen-bonding units in the polymer structures. We will also conclude the potential application of hydrogen bonding-based elastomers. Finally, a summary and outlook will be provided.
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Affiliation(s)
- Zhulu Xie
- CAS
Key Laboratory of Magnetic Materials and Devices, and Zhejiang Province
Key Laboratory of Magnetic Materials and Application Technology, Ningbo
Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
- Nano
Science and Technology Institute, University
of Science and Technology of China, Suzhou 215123, China
| | - Ben-Lin Hu
- CAS
Key Laboratory of Magnetic Materials and Devices, and Zhejiang Province
Key Laboratory of Magnetic Materials and Application Technology, Ningbo
Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| | - Run-Wei Li
- CAS
Key Laboratory of Magnetic Materials and Devices, and Zhejiang Province
Key Laboratory of Magnetic Materials and Application Technology, Ningbo
Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| | - Qichun Zhang
- Department
of Materials Science and Engineering City University of Hong Kong
Kowloon, Hong Kong SAR 99880, China
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123
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Xu J, Chen J, Zhang Y, Liu T, Fu J. A Fast Room-Temperature Self-Healing Glassy Polyurethane. Angew Chem Int Ed Engl 2021; 60:7947-7955. [PMID: 33432671 DOI: 10.1002/anie.202017303] [Citation(s) in RCA: 74] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Indexed: 12/19/2022]
Abstract
We designed and synthesized a colorless transparent glassy polyurethane assembled using low-molecular-weight oligomers carrying a large number of loosely packed weak hydrogen bonds (H-bonds), which has a glass transition temperature (Tg ) up to 36.8 °C and behaves unprecedentedly robust stiffness with a tensile Young's modulus of 1.56±0.03 GPa. Fast room-temperature self-healing was observed in this polymer network: the broken glassy polyurethane (GPU) specimen can recover to a tensile strength up 7.74±0.76 MPa after healing for as little as 10 min, which is prominent compared to reported room-temperature self-healing polymers. The high density of loose-packed hydrogen bonds can reversibly dissociate/associate below Tg of GPU (that is secondary relaxation), which enables the reconfiguration of the damaged network in the fractured interfaces, despite the extremely slow diffusion dynamics of molecular chains under room temperature. This GPU shows potential application as an optical lens.
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Affiliation(s)
- JianHua Xu
- School of Chemical Engineering, Nanjing University of Science and Technology, No 200, XiaoLingWei Road, Nanjing, 210094, P. R. China
| | - JiaoYang Chen
- School of Chemical Engineering, Nanjing University of Science and Technology, No 200, XiaoLingWei Road, Nanjing, 210094, P. R. China
| | - YaNa Zhang
- School of Chemical Engineering, Nanjing University of Science and Technology, No 200, XiaoLingWei Road, Nanjing, 210094, P. R. China
| | - Tong Liu
- School of Chemical Engineering, Nanjing University of Science and Technology, No 200, XiaoLingWei Road, Nanjing, 210094, P. R. China
| | - JiaJun Fu
- School of Chemical Engineering, Nanjing University of Science and Technology, No 200, XiaoLingWei Road, Nanjing, 210094, P. R. China
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124
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Xu J, Chen J, Zhang Y, Liu T, Fu J. A Fast Room‐Temperature Self‐Healing Glassy Polyurethane. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202017303] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- JianHua Xu
- School of Chemical Engineering Nanjing University of Science and Technology No 200, XiaoLingWei Road Nanjing 210094 P. R. China
| | - JiaoYang Chen
- School of Chemical Engineering Nanjing University of Science and Technology No 200, XiaoLingWei Road Nanjing 210094 P. R. China
| | - YaNa Zhang
- School of Chemical Engineering Nanjing University of Science and Technology No 200, XiaoLingWei Road Nanjing 210094 P. R. China
| | - Tong Liu
- School of Chemical Engineering Nanjing University of Science and Technology No 200, XiaoLingWei Road Nanjing 210094 P. R. China
| | - JiaJun Fu
- School of Chemical Engineering Nanjing University of Science and Technology No 200, XiaoLingWei Road Nanjing 210094 P. R. China
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125
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Uhlig T, Fengler C, Seifert A, Taubert F, Kaßner L, Hähnle HJ, Hamers C, Wilhelm M, Spange S, Sommer M. Reversible and Stable Hemiaminal Hydrogels from Polyvinylamine and Highly Reactive and Selective Bis( N-acylpiperidone)s. ACS Macro Lett 2021; 10:389-394. [PMID: 35549062 DOI: 10.1021/acsmacrolett.0c00904] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Water-soluble bis(N-acylpiperidone)s with aldehyde-like reactivity are reported to react rapidly with polyvinylamine at room temperature, providing unprecedented clean reaction products. Unlike most amine/ketone reactions that result in arbitrary mixtures of imines, aminals, hemiaminals, or hydrates, in the present study hemiaminals, aminals, or hemiaminal/aminal mixtures are exclusively found. Detailed NMR spectroscopy of solutions, gels, and solids, aided by model reactions, reveals that the hemiaminal/aminal ratio depends on pH, water content, and cross-linking density. Network formation is fully reversible upon changes in pH, with the resulting moduli from rheology spanning almost 3 orders of magnitude. The self-healing ability of the system is probed by rheology as well, demonstrating maintained material properties of fractured and healed samples. The unusually clean, fast, and reversible chemistry highlights bispiperidones as a class of efficient building blocks with unprecedented possibilities in dynamic covalent chemistry.
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Affiliation(s)
- Tina Uhlig
- Institute for Chemistry, Polymer Chemistry, Chemnitz University of Technology, Straße der Nationen 62, 09111 Chemnitz, Germany
| | - Christian Fengler
- Institute for Chemical Technology and Polymer Chemistry, Karlsruhe Institute of Technology, Engesserstraße 18, 76128 Karlsruhe, Germany
| | - Andreas Seifert
- Institute for Chemistry, Polymer Chemistry, Chemnitz University of Technology, Straße der Nationen 62, 09111 Chemnitz, Germany
| | - Florian Taubert
- Institute for Chemistry, Polymer Chemistry, Chemnitz University of Technology, Straße der Nationen 62, 09111 Chemnitz, Germany
| | - Lysann Kaßner
- Institute for Chemistry, Polymer Chemistry, Chemnitz University of Technology, Straße der Nationen 62, 09111 Chemnitz, Germany
| | | | - Christoph Hamers
- BASF SE Ludwigshafen, Bosch-Straße 38, 67056 Ludwigshafen, Germany
| | - Manfred Wilhelm
- Institute for Chemical Technology and Polymer Chemistry, Karlsruhe Institute of Technology, Engesserstraße 18, 76128 Karlsruhe, Germany
| | - Stefan Spange
- Institute for Chemistry, Polymer Chemistry, Chemnitz University of Technology, Straße der Nationen 62, 09111 Chemnitz, Germany
| | - Michael Sommer
- Institute for Chemistry, Polymer Chemistry, Chemnitz University of Technology, Straße der Nationen 62, 09111 Chemnitz, Germany
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126
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Liu F, Niko Y, Bouchaala R, Mercier L, Lefebvre O, Andreiuk B, Vandamme T, Goetz JG, Anton N, Klymchenko A. Drug‐Sponge Lipid Nanocarrier for in Situ Cargo Loading and Release Using Dynamic Covalent Chemistry. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/anie.202014259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Fei Liu
- Université de Strasbourg Laboratoire de Bioimagerie et Pathologies UMR 7021 CNRS 74 route du Rhin 67401 Illkirch France
- INSERM UMR 1260, Regenerative Nanomedicine (RNM), FMTS, CNRS 7199, CAMB Université de Strasbourg 67000 Strasbourg France
| | - Yosuke Niko
- Université de Strasbourg Laboratoire de Bioimagerie et Pathologies UMR 7021 CNRS 74 route du Rhin 67401 Illkirch France
- Research and Education Faculty, Multidisciplinary Science Cluster Interdisciplinary Science Unit Kochi University 2-5-1, Akebono-cho, Kochi-shi Kochi 780-8520 Japan
| | - Redouane Bouchaala
- Université de Strasbourg Laboratoire de Bioimagerie et Pathologies UMR 7021 CNRS 74 route du Rhin 67401 Illkirch France
| | - Luc Mercier
- Inserm U1109, Tumor Biomechanics, Fédération de Médecine Translationnelle de Strasbourg (FMTS) University of Strasbourg 67200 Strasbourg France
- Current address: Interdisciplinary Institute for Neuroscience University of Bordeaux, CNRS UMR 5297 33077 Bordeaux France
| | - Olivier Lefebvre
- Inserm U1109, Tumor Biomechanics, Fédération de Médecine Translationnelle de Strasbourg (FMTS) University of Strasbourg 67200 Strasbourg France
| | - Bohdan Andreiuk
- Université de Strasbourg Laboratoire de Bioimagerie et Pathologies UMR 7021 CNRS 74 route du Rhin 67401 Illkirch France
| | - Thierry Vandamme
- INSERM UMR 1260, Regenerative Nanomedicine (RNM), FMTS, CNRS 7199, CAMB Université de Strasbourg 67000 Strasbourg France
| | - Jacky G. Goetz
- Inserm U1109, Tumor Biomechanics, Fédération de Médecine Translationnelle de Strasbourg (FMTS) University of Strasbourg 67200 Strasbourg France
| | - Nicolas Anton
- INSERM UMR 1260, Regenerative Nanomedicine (RNM), FMTS, CNRS 7199, CAMB Université de Strasbourg 67000 Strasbourg France
| | - Andrey Klymchenko
- Université de Strasbourg Laboratoire de Bioimagerie et Pathologies UMR 7021 CNRS 74 route du Rhin 67401 Illkirch France
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127
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Xu YY, Liu HK, Wang ZK, Song B, Zhang DW, Wang H, Li Z, Li X, Li ZT. Olive-Shaped Organic Cages: Synthesis and Remarkable Promotion of Hydrazone Condensation through Encapsulation in Water. J Org Chem 2021; 86:3943-3951. [PMID: 33599126 DOI: 10.1021/acs.joc.0c02792] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Two organic cages have been prepared in situ in water through the 2 + 3 hydrazone coupling of two pyridinium-derived trialdehydes and oxalohydrazide. The highly water-soluble cages encapsulate and solubilize linear neutral molecules. Such encapsulation has been applied for the promotion of both two- or three-component hydrazone condensation in water. For two-component reactions, the yields of the resulting monohydrazones are increased from 5-10 to 90-96%. For three-component reactions of hydrazinecarbohydrazide with 11 aromatic aldehydes, in the presence of the organic cages, the bihydrazone products can be produced in 88-96% yields. In contrast, without the promotion of the organic cages, 9 of the reactions do not afford the corresponding dihydrazone product.
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Affiliation(s)
- Yan-Yan Xu
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, 2205 Songhu Road, Shanghai 200438, China
| | - Hong-Kun Liu
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, 2205 Songhu Road, Shanghai 200438, China
| | - Ze-Kun Wang
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, 2205 Songhu Road, Shanghai 200438, China
| | - Bo Song
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Dan-Wei Zhang
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, 2205 Songhu Road, Shanghai 200438, China
| | - Hui Wang
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, 2205 Songhu Road, Shanghai 200438, China
| | - Zhiming Li
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, 2205 Songhu Road, Shanghai 200438, China
| | - Xiaopeng Li
- College of Chemistry and Environmental Engineering, Shenzhen University, 3688 Nanhai Avenue, Shenzhen, Guangdong 518055, China
| | - Zhan-Ting Li
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, 2205 Songhu Road, Shanghai 200438, China
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128
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Luo Y, Chen X, Chen J, Wu Z, Ma H, Liu X, Xiang B, Ma X, Luo Z. A combined experimental and molecular dynamics simulation study of an intrinsic self-healing polyurethane elastomer based on a dynamic non-covalent mechanism. SOFT MATTER 2021; 17:2191-2204. [PMID: 33459746 DOI: 10.1039/d0sm02085k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
An intrinsic self-healing polyurethane (PU) elastomer with excellent self-healing efficiency was prepared. The self-healing properties of this elastomer as well as the temperature dependence of self-healing can be tailored by regulating the molar ratio of hard to soft segments. The self-healing efficiency of 92.5% is the highest when the molar ratio of 4,4-methylenedicyclohexyl diisocyanate (HMDI) to polypropylene carbonate polyol (PPC) is 1.3 and the temperature is 25 °C. In situ temperature swing infrared spectra and low-field nuclear magnetic resonance reveal that the soft segment, PPC, endows PU with a dense dynamic hydrogen bond network, and the dissociation and reconstruction of the hydrogen bond network enable the PU to heal. To date, the exchange of hydrogen bonds has not been observed intuitively through experimental means. Therefore, the number, type, strength, lifetime, and the exchange of hydrogen bonds in the self-healing process at different temperatures were investigated by molecular dynamics (MD) simulation. The simulated results show that the type of hydrogen bond exchange between functional groups will be affected by temperature. The hydrogen bonds between urethane and urea groups play a leading role in the self-healing properties due to the high strength and a large number of hydrogen bonds at both 25 and 50 °C. The stronger strength, longer lifetime, and greater number of effective hydrogen bonds at 25 °C make the self-healing efficiency of PU higher than at 50 °C.
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Affiliation(s)
- Yanlong Luo
- College of Science, Nanjing Forestry University, Nanjing 210037, China. and Institute of Polymer Materials, Nanjing Forestry University, Nanjing 210037, China
| | - Xianling Chen
- College of Science, Nanjing Forestry University, Nanjing 210037, China.
| | - Jialiang Chen
- College of Science, Nanjing Forestry University, Nanjing 210037, China.
| | - Zhipeng Wu
- College of Science, Nanjing Forestry University, Nanjing 210037, China.
| | - Hongming Ma
- Highbery New Nano Materials Technology Co., Ltd, Changzhou 213100, China
| | - Xuejing Liu
- Highbery New Nano Materials Technology Co., Ltd, Changzhou 213100, China
| | - Bo Xiang
- College of Science, Nanjing Forestry University, Nanjing 210037, China. and Institute of Polymer Materials, Nanjing Forestry University, Nanjing 210037, China
| | - Xiaofeng Ma
- College of Science, Nanjing Forestry University, Nanjing 210037, China. and Institute of Polymer Materials, Nanjing Forestry University, Nanjing 210037, China
| | - Zhenyang Luo
- College of Science, Nanjing Forestry University, Nanjing 210037, China. and Institute of Polymer Materials, Nanjing Forestry University, Nanjing 210037, China
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130
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Khatib M, Zohar O, Haick H. Self-Healing Soft Sensors: From Material Design to Implementation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2004190. [PMID: 33533124 DOI: 10.1002/adma.202004190] [Citation(s) in RCA: 64] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 09/25/2020] [Indexed: 05/20/2023]
Abstract
The demand for interfacing electronics in everyday life is rapidly accelerating, with an ever-growing number of applications in wearable electronics and electronic skins for robotics, prosthetics, and other purposes. Soft sensors that efficiently detect environmental or biological/physiological stimuli have been extensively studied due to their essential role in creating the necessary interfaces for these applications. Unfortunately, due to their natural softness, these sensors are highly sensitive to structural and mechanical damage. The integration of natural properties, such as self-healing, into these systems should improve their reliability, stability, and long-term performance. Recent studies on self-healing soft sensors for varying chemical and physical parameters are herein reviewed. In addition, contemporary studies on material design, device structure, and fabrication methods for sensing platforms are also discussed. Finally, the main challenges and future perspectives in this field are introduced, while focusing on the most promising examples and directions already reported.
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Affiliation(s)
- Muhammad Khatib
- The Department of Chemical Engineering, Technion - Israel Institute of Technology, Haifa, 3200003, Israel
| | - Orr Zohar
- The Department of Chemical Engineering, Technion - Israel Institute of Technology, Haifa, 3200003, Israel
| | - Hossam Haick
- The Department of Chemical Engineering, Technion - Israel Institute of Technology, Haifa, 3200003, Israel
- The Russell Berrie Nanotechnology Institute, Technion - Israel Institute of Technology, Haifa, 3200003, Israel
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131
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Liu F, Niko Y, Bouchaala R, Mercier L, Lefebvre O, Andreiuk B, Vandamme T, Goetz JG, Anton N, Klymchenko A. Drug‐Sponge Lipid Nanocarrier for in Situ Cargo Loading and Release Using Dynamic Covalent Chemistry. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202014259] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Fei Liu
- Université de Strasbourg Laboratoire de Bioimagerie et Pathologies UMR 7021 CNRS 74 route du Rhin 67401 Illkirch France
- INSERM UMR 1260, Regenerative Nanomedicine (RNM), FMTS, CNRS 7199, CAMB Université de Strasbourg 67000 Strasbourg France
| | - Yosuke Niko
- Université de Strasbourg Laboratoire de Bioimagerie et Pathologies UMR 7021 CNRS 74 route du Rhin 67401 Illkirch France
- Research and Education Faculty, Multidisciplinary Science Cluster Interdisciplinary Science Unit Kochi University 2-5-1, Akebono-cho, Kochi-shi Kochi 780-8520 Japan
| | - Redouane Bouchaala
- Université de Strasbourg Laboratoire de Bioimagerie et Pathologies UMR 7021 CNRS 74 route du Rhin 67401 Illkirch France
| | - Luc Mercier
- Inserm U1109, Tumor Biomechanics, Fédération de Médecine Translationnelle de Strasbourg (FMTS) University of Strasbourg 67200 Strasbourg France
- Current address: Interdisciplinary Institute for Neuroscience University of Bordeaux, CNRS UMR 5297 33077 Bordeaux France
| | - Olivier Lefebvre
- Inserm U1109, Tumor Biomechanics, Fédération de Médecine Translationnelle de Strasbourg (FMTS) University of Strasbourg 67200 Strasbourg France
| | - Bohdan Andreiuk
- Université de Strasbourg Laboratoire de Bioimagerie et Pathologies UMR 7021 CNRS 74 route du Rhin 67401 Illkirch France
| | - Thierry Vandamme
- INSERM UMR 1260, Regenerative Nanomedicine (RNM), FMTS, CNRS 7199, CAMB Université de Strasbourg 67000 Strasbourg France
| | - Jacky G. Goetz
- Inserm U1109, Tumor Biomechanics, Fédération de Médecine Translationnelle de Strasbourg (FMTS) University of Strasbourg 67200 Strasbourg France
| | - Nicolas Anton
- INSERM UMR 1260, Regenerative Nanomedicine (RNM), FMTS, CNRS 7199, CAMB Université de Strasbourg 67000 Strasbourg France
| | - Andrey Klymchenko
- Université de Strasbourg Laboratoire de Bioimagerie et Pathologies UMR 7021 CNRS 74 route du Rhin 67401 Illkirch France
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132
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Laroui N, Coste M, Su D, Ali LMA, Bessin Y, Barboiu M, Gary-Bobo M, Bettache N, Ulrich S. Cell-Selective siRNA Delivery Using Glycosylated Dynamic Covalent Polymers Self-Assembled In Situ by RNA Templating. Angew Chem Int Ed Engl 2021; 60:5783-5787. [PMID: 33289957 DOI: 10.1002/anie.202014066] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 11/27/2020] [Indexed: 12/25/2022]
Abstract
Dynamic covalent libraries enable exploring complex chemical systems from which bioactive assemblies can adaptively emerge through template effects. In this work, we studied dynamic covalent libraries made of complementary bifunctional cationic peptides, yielding a diversity of species from macrocycles to polymers. Although polymers are typically expressed only at high concentration, we found that siRNA acts as a template in the formation of dynamic covalent polymers at low concentration in a process guided by electrostatic binding. Using a glycosylated building block, we were able to show that this templated polymerization further translates into the multivalent presentation of carbohydrate ligands, which subsequently promotes cell uptake and even cell-selective siRNA delivery.
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Affiliation(s)
- Nabila Laroui
- Institut des Biomolécules Max Mousseron (IBMM), CNRS, Université de Montpellier, ENSCM, Montpellier, France
| | - Maëva Coste
- Institut des Biomolécules Max Mousseron (IBMM), CNRS, Université de Montpellier, ENSCM, Montpellier, France
| | - Dandan Su
- Institut des Biomolécules Max Mousseron (IBMM), CNRS, Université de Montpellier, ENSCM, Montpellier, France.,Institut Européen des Membranes, Adaptive Supramolecular Nanosystems Group, Université de Montpellier, ENSCM, CNRS, Place Eugène Bataillon, CC 047, 34095, Montpellier, France
| | - Lamiaa M A Ali
- Institut des Biomolécules Max Mousseron (IBMM), CNRS, Université de Montpellier, ENSCM, Montpellier, France.,Department of Biochemistry, Medical Research Institute, University of Alexandria, 21561, Alexandria, Egypt
| | - Yannick Bessin
- Institut des Biomolécules Max Mousseron (IBMM), CNRS, Université de Montpellier, ENSCM, Montpellier, France
| | - Mihail Barboiu
- Institut Européen des Membranes, Adaptive Supramolecular Nanosystems Group, Université de Montpellier, ENSCM, CNRS, Place Eugène Bataillon, CC 047, 34095, Montpellier, France
| | - Magali Gary-Bobo
- Institut des Biomolécules Max Mousseron (IBMM), CNRS, Université de Montpellier, ENSCM, Montpellier, France
| | - Nadir Bettache
- Institut des Biomolécules Max Mousseron (IBMM), CNRS, Université de Montpellier, ENSCM, Montpellier, France
| | - Sébastien Ulrich
- Institut des Biomolécules Max Mousseron (IBMM), CNRS, Université de Montpellier, ENSCM, Montpellier, France
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133
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Laroui N, Coste M, Su D, Ali LMA, Bessin Y, Barboiu M, Gary‐Bobo M, Bettache N, Ulrich S. Cell‐Selective siRNA Delivery Using Glycosylated Dynamic Covalent Polymers Self‐Assembled In Situ by RNA Templating. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202014066] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Nabila Laroui
- Institut des Biomolécules Max Mousseron (IBMM) CNRS Université de Montpellier ENSCM Montpellier France
| | - Maëva Coste
- Institut des Biomolécules Max Mousseron (IBMM) CNRS Université de Montpellier ENSCM Montpellier France
| | - Dandan Su
- Institut des Biomolécules Max Mousseron (IBMM) CNRS Université de Montpellier ENSCM Montpellier France
- Institut Européen des Membranes Adaptive Supramolecular Nanosystems Group Université de Montpellier ENSCM CNRS Place Eugène Bataillon, CC 047 34095 Montpellier France
| | - Lamiaa M. A. Ali
- Institut des Biomolécules Max Mousseron (IBMM) CNRS Université de Montpellier ENSCM Montpellier France
- Department of Biochemistry Medical Research Institute University of Alexandria 21561 Alexandria Egypt
| | - Yannick Bessin
- Institut des Biomolécules Max Mousseron (IBMM) CNRS Université de Montpellier ENSCM Montpellier France
| | - Mihail Barboiu
- Institut Européen des Membranes Adaptive Supramolecular Nanosystems Group Université de Montpellier ENSCM CNRS Place Eugène Bataillon, CC 047 34095 Montpellier France
| | - Magali Gary‐Bobo
- Institut des Biomolécules Max Mousseron (IBMM) CNRS Université de Montpellier ENSCM Montpellier France
| | - Nadir Bettache
- Institut des Biomolécules Max Mousseron (IBMM) CNRS Université de Montpellier ENSCM Montpellier France
| | - Sébastien Ulrich
- Institut des Biomolécules Max Mousseron (IBMM) CNRS Université de Montpellier ENSCM Montpellier France
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134
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Cao X, Zhang P, Guo N, Tong Y, Xu Q, Zhou D, Feng Z. Self-healing solid polymer electrolyte based on imine bonds for high safety and stable lithium metal batteries. RSC Adv 2021; 11:2985-2994. [PMID: 35424250 PMCID: PMC8694013 DOI: 10.1039/d0ra10035h] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Accepted: 12/26/2020] [Indexed: 11/21/2022] Open
Abstract
Due to their low flammability, good dimensional stability and chemical stability, solid polymer electrolytes are currently attracting extensive interest for building lithium metal batteries. But severe safety issues such as cracks or breakage, resulting in short circuits will prevent their widespread application. Here, we report a new design of self-healing solid polymer electrolyte (ShSPE) based on imine bonds, fabricated from varying amounts of polyoxyethylenebis(amine) and terephthalaldehyde through a simple Schiff base reaction. Moreover, adding diglycidyl ether of bisphenol A improves the flexibility and high stretchability of the polymer electrolyte. The polymer networks exhibit good thermal stability and excellent self-healing characteristics. The ShSPE with the highest NH2-PEG-NH2 content (ShSPE-3) has an improved lithium ion transference number of 0.39, and exhibits an electrochemical stability up to 4.5 V vs. Li/Li+. ShSPE-3 shows the highest ionic conductivity of 1.67 × 10-4 S cm-1 at 60 °C. Besides, the interfacial stability of ShSPE-3 is promoted and the electrolyte membrane exhibits good cycling performance with LiFePO4, and the LiFePO4/Li cell exhibits an initial discharge capacity of 141.3 mA h g -1. These results suggest that self-healing solid polymer electrolytes are promising candidates for high safety and stable lithium metal batteries.
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Affiliation(s)
- Xiaoyan Cao
- School of Environmental and Chemical Engineering, Nanchang Hangkong University 696 Fenghe South Avenue Nanchang 330063 China +86 791 83953373 +86 791 83953377
| | - Pengming Zhang
- School of Environmental and Chemical Engineering, Nanchang Hangkong University 696 Fenghe South Avenue Nanchang 330063 China +86 791 83953373 +86 791 83953377
| | - Nanping Guo
- School of Materials Science and Engineering, Nanchang Hangkong University 696 Fenghe South Avenue Nanchang 330063 China
| | - Yongfen Tong
- School of Environmental and Chemical Engineering, Nanchang Hangkong University 696 Fenghe South Avenue Nanchang 330063 China +86 791 83953373 +86 791 83953377
| | - Qiuhua Xu
- School of Environmental and Chemical Engineering, Nanchang Hangkong University 696 Fenghe South Avenue Nanchang 330063 China +86 791 83953373 +86 791 83953377
| | - Dan Zhou
- School of Environmental and Chemical Engineering, Nanchang Hangkong University 696 Fenghe South Avenue Nanchang 330063 China +86 791 83953373 +86 791 83953377
| | - Zhijun Feng
- School of Materials Science and Engineering, Nanchang Hangkong University 696 Fenghe South Avenue Nanchang 330063 China
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135
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Paolillo S, Bose RK, Santana MH, Grande AM. Intrinsic Self-Healing Epoxies in Polymer Matrix Composites (PMCs) for Aerospace Applications. Polymers (Basel) 2021; 13:E201. [PMID: 33429922 PMCID: PMC7826775 DOI: 10.3390/polym13020201] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 01/05/2021] [Accepted: 01/07/2021] [Indexed: 11/30/2022] Open
Abstract
This article reviews some of the intrinsic self-healing epoxy materials that have been investigated throughout the course of the last twenty years. Emphasis is placed on those formulations suitable for the design of high-performance composites to be employed in the aerospace field. A brief introduction is given on the advantages of intrinsic self-healing polymers over extrinsic counterparts and of epoxies over other thermosetting systems. After a general description of the testing procedures adopted for the evaluation of the healing efficiency and the required features for a smooth implementation of such materials in the industry, different self-healing mechanisms, arising from either physical or chemical interactions, are detailed. The presented formulations are critically reviewed, comparing major strengths and weaknesses of their healing mechanisms, underlining the inherent structural polymer properties that may affect the healing phenomena. As many self-healing chemistries already provide the fundamental aspects for recyclability and reprocessability of thermosets, which have been historically thought as a critical issue, perspective trends of a circular economy for self-healing polymers are discussed along with their possible advances and challenges. This may open up the opportunity for a totally reconfigured landscape in composite manufacturing, with the net benefits of overall cost reduction and less waste. Some general drawbacks are also laid out along with some potential countermeasures to overcome or limit their impact. Finally, present and future applications in the aviation and space fields are portrayed.
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Affiliation(s)
- Stefano Paolillo
- Dipartimento di Scienze e Tecnologie Aerospaziali, Politecnico di Milano, via La Masa, 34, 20156 Milano, Italy;
| | - Ranjita K. Bose
- Department of Chemical Engineering, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands;
| | | | - Antonio M. Grande
- Dipartimento di Scienze e Tecnologie Aerospaziali, Politecnico di Milano, via La Masa, 34, 20156 Milano, Italy;
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136
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Ponnupandian S, Mondal P, Becker T, Hoogenboom R, Lowe AB, Singha NK. Self-healing hydrophobic POSS-functionalized fluorinated copolymers via RAFT polymerization and dynamic Diels–Alder reaction. Polym Chem 2021. [DOI: 10.1039/d0py01522a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Development of self-healing hydrophobic POSS-functionalized fluorinated copolymethacrylate(s) via RAFT Polymerization and dynamic Diels–Alder Reaction.
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Affiliation(s)
- Siva Ponnupandian
- Rubber Technology Centre
- Indian Institute of Technology
- Kharagpur
- India
- Curtin Institute for Functional Molecules and Interfaces and School of Molecular and Life Sciences
| | - Prantik Mondal
- Rubber Technology Centre
- Indian Institute of Technology
- Kharagpur
- India
| | - Thomas Becker
- Curtin Institute for Functional Molecules and Interfaces and School of Molecular and Life Sciences
- Curtin University
- Bentley
- Australia
| | - Richard Hoogenboom
- Supramolecular Chemistry Group
- Center of Macromolecular Chemistry (CMaC)
- Department of Organic and Macromolecular Chemistry
- Ghent University
- Belgium
| | - Andrew B. Lowe
- Curtin Institute for Functional Molecules and Interfaces and School of Molecular and Life Sciences
- Curtin University
- Bentley
- Australia
| | - Nikhil K. Singha
- Rubber Technology Centre
- Indian Institute of Technology
- Kharagpur
- India
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137
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Mondal P, Jana G, Pal TS, Chattaraj PK, Singha NK. Self-healable functional polymers based on Diels–Alder ‘click chemistry’ involving substituted furan and triazolinedione derivatives: a simple and very fast approach. Polym Chem 2021. [DOI: 10.1039/d1py00910a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis of a functional healable polymethacrylate based on dynamic 2,5-disubstituted furan–TAD via DA-“click” conjugation is reported.
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Affiliation(s)
- Prantik Mondal
- Rubber Technology Centre, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
| | - Gourhari Jana
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
| | - Tuhin Subhra Pal
- Rubber Technology Centre, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
| | - Pratim K. Chattaraj
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
- Department of Chemistry, Indian Institute of Technology Kharagpur, West Bengal, 721302, India
| | - Nikhil K. Singha
- Rubber Technology Centre, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
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138
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Zhang Y, Wu Y, Li J, Zhang K. Catalyst-free room-temperature self-healing polymer networks based on dynamic covalent quinone methide-secondary amine chemistry. Polym Chem 2021. [DOI: 10.1039/d1py00957e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel type of dynamic covalent polymer network with a catalyst-free room-temperature self-healing ability was developed on a new dynamic covalent chemistry of aza-Michael addition between para-quinone methide and secondary amine.
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Affiliation(s)
- Yuanxing Zhang
- Laboratory of Polymer Physics and Chemistry, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, The Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ying Wu
- Institute of Polymer Chemistry and Physics, College of Chemistry, Beijing Normal University, Beijing, 100875, China
| | - Jiayi Li
- Laboratory of Polymer Physics and Chemistry, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, The Chinese Academy of Sciences, Beijing 100190, China
- Institute of Polymer Chemistry and Physics, College of Chemistry, Beijing Normal University, Beijing, 100875, China
| | - Ke Zhang
- Laboratory of Polymer Physics and Chemistry, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, The Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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139
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Gao H, Sun Y, Wang M, Wu B, Han G, Jin L, Zhang K, Xia Y. Self-healable and reprocessable acrylate-based elastomers with exchangeable disulfide crosslinks by thiol-ene click chemistry. POLYMER 2021. [DOI: 10.1016/j.polymer.2020.123132] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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140
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Zuccaccia D, Pinalli R, De Zorzi R, Semeraro M, Credi A, Zuccaccia C, Macchioni A, Geremia S, Dalcanale E. Hierarchical self-assembly and controlled disassembly of a cavitand-based host–guest supramolecular polymer. Polym Chem 2021. [DOI: 10.1039/d0py01483d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two hierarchical aggregation modes of cavitand-based supramolecular polymers allow implementing orthogonal disassembly procedures: electrochemical reduction for linear chains and solvent-driven dissolution for bundles.
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Affiliation(s)
- Daniele Zuccaccia
- Dipartimento di Scienze Agroalimentari Ambientali e Animali
- Università di Udine
- 33100 Udine
- Italy
| | - Roberta Pinalli
- Dipartimento di Scienze Chimiche
- della Vita e della Sostenibilità Ambientale and Unità INSTM
- UdR Parma
- Università di Parma
- 43124 Parma
| | - Rita De Zorzi
- Dipartimento di Scienze Chimiche e Farmaceutiche
- Università di Trieste
- 34127 Trieste
- Italy
| | - Monica Semeraro
- Dipartimento di Chimica Industriale “Toso Montanari”
- Università di Bologna
- 40136 Bologna
- Italy
| | - Alberto Credi
- Dipartimento di Chimica Industriale “Toso Montanari”
- Università di Bologna
- 40136 Bologna
- Italy
| | - Cristiano Zuccaccia
- Dipartimento Chimica
- Biologia e Biotecnologia and CIRCC
- Università di Perugia
- 06123 Perugia
- Italy
| | - Alceo Macchioni
- Dipartimento Chimica
- Biologia e Biotecnologia and CIRCC
- Università di Perugia
- 06123 Perugia
- Italy
| | - Silvano Geremia
- Dipartimento di Scienze Chimiche e Farmaceutiche
- Università di Trieste
- 34127 Trieste
- Italy
| | - Enrico Dalcanale
- Dipartimento di Scienze Chimiche
- della Vita e della Sostenibilità Ambientale and Unità INSTM
- UdR Parma
- Università di Parma
- 43124 Parma
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141
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Wanasinghe SV, Schreiber EM, Thompson AM, Sparks JL, Konkolewicz D. Dynamic covalent chemistry for architecture changing interpenetrated and single networks. Polym Chem 2021. [DOI: 10.1039/d1py00198a] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Dynamic single and interpenetrated materials were developed, with post polymerization network exchange enhancing the material properties.
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Affiliation(s)
| | | | - Adam M. Thompson
- Department of Chemistry and Biochemistry
- Miami University
- Oxford
- USA
| | - Jessica L. Sparks
- Department of Chemical
- Paper and Biomedical Engineering
- Miami University
- Oxford
- USA
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142
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Zhang Y, Zhang Y, Cui H, Barboiu M, Chen J. Dynameric Collagen Self-Healing Membranes with High Mechanical Strength for Effective Cell Growth Applications. Chemistry 2020; 26:16994-16999. [PMID: 32761991 DOI: 10.1002/chem.202003269] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Indexed: 01/03/2023]
Abstract
The fabrication of biocompatible adaptive materials with high stiffness and self-healing properties for medical applications is a challenging endeavor. Collagen is a major extracellular matrix component acting as a substrate for cell adhesion and migration. Dynamers are constitutional polymers whose monomeric components are linked through reversible bonds, able to modify their constitution through reversible exchange of their components. In the current work, we demonstrate that the rational combination of collagen and dynameric networks connected with reversible covalent imine bonds is a very important and previously unreported strategy to provide biocompatible membranes with self-healing ability and excellent mechanical strength. The key challenge in the construction of such membranes is the required adaptive interaction between collagen chains and the dynamic cross-linkers, preventing the formation of defects. For example, by varying structure and molecular lengths of the dynamers, the tensile strength of the dynameric membranes reach over 80 MPa, more than 400 % higher than that observed for the reference collagen membrane, and the highest value for break strain found, was 19 %. The self-healing properties were observed when reconnecting two membrane pieces or even from crushed status of the membranes. Moreover, both MTT assay and confocal laser scanning microscopy method demonstrated the good biocompatibility of the collagen membranes, leaving more than 90 % viability for NIH 3T3 cells after 24 h co-culture.
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Affiliation(s)
- Yan Zhang
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Pharmaceutical Sciences, Jiangnan University, Wuxi, 214122, P. R. China
| | - Ye Zhang
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Pharmaceutical Sciences, Jiangnan University, Wuxi, 214122, P. R. China
| | - Han Cui
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Pharmaceutical Sciences, Jiangnan University, Wuxi, 214122, P. R. China
| | - Mihail Barboiu
- Institut Europeen des Membranes, Adaptive Supramolecular Nanosystems Group University of Montpellier, ENSCM-CNRS, Place E. Bataillon CC047, Montpellier, 34095, France
| | - Jinghua Chen
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Pharmaceutical Sciences, Jiangnan University, Wuxi, 214122, P. R. China
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143
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Schaufelberger F, Seigel K, Ramström O. Hydrogen-Bond Catalysis of Imine Exchange in Dynamic Covalent Systems. Chemistry 2020; 26:15581-15588. [PMID: 32427370 DOI: 10.1002/chem.202001666] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Indexed: 12/28/2022]
Abstract
The reversibility of imine bonds has been exploited to great effect in the field of dynamic covalent chemistry, with applications such as preparation of functional systems, dynamic materials, molecular machines, and covalent organic frameworks. However, acid catalysis is commonly needed for efficient equilibration of imine mixtures. Herein, it is demonstrated that hydrogen bond donors such as thioureas and squaramides can catalyze the equilibration of dynamic imine systems under unprecedentedly mild conditions. Catalysis occurs in a range of solvents and in the presence of many sensitive additives, showing moderate to good rate accelerations for both imine metathesis and transimination with amines, hydrazines, and hydroxylamines. Furthermore, the catalyst proved simple to immobilize, introducing both reusability and extended control of the equilibration process.
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Affiliation(s)
- Fredrik Schaufelberger
- Department of Chemistry, KTH-Royal Institute of Technology, Teknikringen 36, 10044, Stockholm, Sweden
| | - Karolina Seigel
- Department of Chemistry, KTH-Royal Institute of Technology, Teknikringen 36, 10044, Stockholm, Sweden
| | - Olof Ramström
- Department of Chemistry, KTH-Royal Institute of Technology, Teknikringen 36, 10044, Stockholm, Sweden.,Department of Chemistry, University of Massachusetts Lowell, One University Ave., Lowell, MA, 01854, USA.,Department of Chemistry and Biomedical Sciences, Linnaeus University, 39182, Kalmar, Sweden
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144
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Yang Y, Kamon Y, Lynd NA, Hashidzume A. Self-Healing Thermoplastic Elastomers Formed from Triblock Copolymers with Dense 1,2,3-Triazole Blocks. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c02080] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yanqiong Yang
- Department of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Yuri Kamon
- Department of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Nathaniel A. Lynd
- McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, Texas 78712-1589, United States
| | - Akihito Hashidzume
- Department of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
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145
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Xue H, Ding X, Zhang Y, Li X, Xia J, Lin Q. Disulfide group influence on the surface properties and reversible cross-linking functionalization of natural polymer coating. Polym Bull (Berl) 2020. [DOI: 10.1007/s00289-020-03484-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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146
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Worch JC, Dove AP. 100th Anniversary of Macromolecular Science Viewpoint: Toward Catalytic Chemical Recycling of Waste (and Future) Plastics. ACS Macro Lett 2020; 9:1494-1506. [PMID: 35617072 DOI: 10.1021/acsmacrolett.0c00582] [Citation(s) in RCA: 114] [Impact Index Per Article: 28.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The current global materials economy has long been inefficient due to unproductive reuse and recycling efforts. Within the wider materials portfolio, plastics have been revolutionary to many industries but they have been treated as disposable commodities leading to their increasing accumulation in the environment as waste. The field of chemistry has had significant bearing in ushering in the current plastics industry and will undoubtedly have a hand in transforming it to become more sustainable. Existing approaches include the development of synthetic biodegradable plastics and turning to renewable raw materials in order to produce plastics similar to our current petrol-based materials or to create new polymers. Additionally, chemists are confronting the environmental crisis by developing alternative recycling methods to deal with the legacy of plastic waste. Important emergent technologies, such as catalytic chemical recycling or upcycling, have the potential to alleviate numerous issues related to our current and future refuse and, in doing so, help pivot our materials economy from linearity to circularity.
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Affiliation(s)
- Joshua C. Worch
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - Andrew P. Dove
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
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147
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Tran TN, Di Mauro C, Malburet S, Graillot A, Mija A. Dual Cross-linking of Epoxidized Linseed Oil with Combined Aliphatic/Aromatic Diacids Containing Dynamic S-S Bonds Generating Recyclable Thermosets. ACS APPLIED BIO MATERIALS 2020; 3:7550-7561. [PMID: 35019496 DOI: 10.1021/acsabm.0c00788] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The end-of-life of thermoset materials is a real issue that confronts our society, and the strategy of introducing dynamic reversible bonds can be a sustainable solution to overcome this problem. This study shows an efficient way to produce biobased and recyclable thermosets, for a circular use. To reduce the production costs linked to energy and duration, an improved curing process is proposed by combining aromatic and aliphatic diacid hardeners containing dynamic S-S bonds. The work demonstrates the increased reactivity of epoxidized vegetable oil reacted with the two diacids. The structural evolutions during the exchange reactions that allow the recyclability were followed by Fourier transformed-infrared and nuclear magnetic resonance spectroscopies, high-performance liquid chromatography, and mass spectroscopy. The curing process was studied by differential scanning calorimetry and kinetic study.
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Affiliation(s)
- Thi-Nguyet Tran
- Université Côte d'Azur, Institut de Chimie de Nice, UMR 7272-CNRS, 28 Avenue Valrose, 06108 Nice Cedex 2, France
| | - Chiara Di Mauro
- Université Côte d'Azur, Institut de Chimie de Nice, UMR 7272-CNRS, 28 Avenue Valrose, 06108 Nice Cedex 2, France
| | - Samuel Malburet
- Specific Polymers, 150 Avenue des Cocardières, Zac Via Domitia, 34160 Castries, France
| | - Alain Graillot
- Specific Polymers, 150 Avenue des Cocardières, Zac Via Domitia, 34160 Castries, France
| | - Alice Mija
- Université Côte d'Azur, Institut de Chimie de Nice, UMR 7272-CNRS, 28 Avenue Valrose, 06108 Nice Cedex 2, France
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148
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Sumitani R, Mochida T. Reversible formation of soft coordination polymers from liquid mixtures of photoreactive organometallic ionic liquid and bridging molecules. SOFT MATTER 2020; 16:9946-9954. [PMID: 33030501 DOI: 10.1039/d0sm01567a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The reversible switching of bonding modes in coordination polymers through the application of external stimuli leads to versatile mechanical and electronic functions. However, the exploration of such a system remains a great challenge. In this study, we designed liquid mixtures comprising a photoreactive organometallic ionic liquid and a bridging ligand, which form intermolecular coordination bonds upon photoirradiation. The liquid mixture of an ionic liquid [Ru(C5H5){Ph(CH2)3CN}][(SO2F)2N] (1) and a tridentate ligand N(C2H4CN)3 was transformed into an elastomer of an amorphous coordination polymer upon ultraviolet photoirradiation. By contrast, the photoirradiation of the mixture of 1 and a bidentate ligand NC(CH2)4CN produced a highly viscous liquid comprising coordination-bonded oligomers. In these reactions, photoirradiation causes dissociation of the organometallic cation, followed by the formation of intermolecular coordination bonds via the bridging ligands. The photoproducts underwent reverse reactions thermally. Based on coordination transformation, the ionic conductivity and viscoelasticity of these materials were reversibly controlled by the application of light and heat.
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Affiliation(s)
- Ryo Sumitani
- Department of Chemistry, Graduate School of Science, Kobe University, 1-1 Rokkodai, Nada, Kobe, Hyogo 657-8501, Japan.
| | - Tomoyuki Mochida
- Department of Chemistry, Graduate School of Science, Kobe University, 1-1 Rokkodai, Nada, Kobe, Hyogo 657-8501, Japan. and Center for Membrane Technology, Kobe University, 1-1 Rokkodai, Nada, Kobe, Hyogo 657-8501, Japan
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149
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Ding J, Qiao Z, Zhang Y, Wei D, Chen S, Tang J, Chen L, Wei D, Sun J, Fan H. NIR-responsive multi-healing HMPAM/dextran/AgNWs hydrogel sensor with recoverable mechanics and conductivity for human-machine interaction. Carbohydr Polym 2020; 247:116686. [PMID: 32829814 DOI: 10.1016/j.carbpol.2020.116686] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 06/08/2020] [Accepted: 06/22/2020] [Indexed: 11/30/2022]
Abstract
Conductive and self-healing hydrogel sensor is perspective in human-machine interaction applications. However, the design of ideal self-healing hydrogels are always challenging. Herein, by introducing disulfide modified Ag nanowires (AgNWs), we show a novel self-healing hydrogel strain sensor with superior mechanics, conductivity, antibacterial property, and firstly realizing of self-healing with both recovery of mechanics and sensing properties. We demonstrate that the covalent and reversible non-covalent hydrophobic blocks in hydrophobic modified polyacrylamide (HMPAM) achieves the basic self-healing network; dextran with plentiful hydroxyl groups synergistic helps the self-healing by hydrogen bonds; disulfide on the AgNWs surface forms a NIR-responsive and dynamic Ag-S coordination bridge between HMPAM and AgNWs. The resulted hydrogel sensor exhibits comprehensive electromechanical properties, and precisely monitors human motion and subtle electromyography (EMG) signals. Importantly, we firstly achieved the recovery of sensing properties on human motion detection and EMG signal detection after self-healing. This work provides a promising exploration to manufacture bionic strain sensors for potential applications in wearable electronics.
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Affiliation(s)
- Jie Ding
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, Sichuan 610064, PR China
| | - Zi Qiao
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, Sichuan 610064, PR China
| | - Yusheng Zhang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, Sichuan 610064, PR China
| | - Danrui Wei
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, Sichuan 610064, PR China
| | - Suping Chen
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, Sichuan 610064, PR China
| | - Jiajia Tang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, Sichuan 610064, PR China
| | - Lu Chen
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, Sichuan 610064, PR China
| | - Dan Wei
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, Sichuan 610064, PR China
| | - Jing Sun
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, Sichuan 610064, PR China
| | - Hongsong Fan
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, Sichuan 610064, PR China.
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150
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Imato K, Nakajima H, Yamanaka R, Takeda N. Self-healing polyurethane elastomers based on charge-transfer interactions for biomedical applications. Polym J 2020. [DOI: 10.1038/s41428-020-00432-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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