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Lipoic acid-based vitrimer-like elastomer
Dynamic covalent networks (DCNs) are materials that feature reversible bond formation and breaking, allowing for self-healing and recyclability. To speed up the bond exchange, significant amounts of catalyst are used, which creates safety concerns. To tackle this issue, we report the synthesis of a...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society of Chemistry
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10644234/ https://www.ncbi.nlm.nih.gov/pubmed/38013676 http://dx.doi.org/10.1039/d3py00883e |
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author | Lan, Xiaohong Boetje, Laura Pelras, Théophile Ye, Chongnan Silvianti, Fitrilia Loos, Katja |
author_facet | Lan, Xiaohong Boetje, Laura Pelras, Théophile Ye, Chongnan Silvianti, Fitrilia Loos, Katja |
author_sort | Lan, Xiaohong |
collection | PubMed |
description | Dynamic covalent networks (DCNs) are materials that feature reversible bond formation and breaking, allowing for self-healing and recyclability. To speed up the bond exchange, significant amounts of catalyst are used, which creates safety concerns. To tackle this issue, we report the synthesis of a lipoic acid-based vitrimer-like elastomer (LAVE) by combining (i) ring-opening polymerization (ROP) of lactones, (ii) lipoic acid modification of polylactones, and (iii) UV crosslinking. The melting temperature (T(m)) of LAVE is below room temperature, which ensures the elastic properties of LAVE at service temperature. By carefully altering the network, it is possible to tune the T(m), as well as the mechanical strength and stretchability of the material. An increase in polylactone chain length in LAVE was found to increase strain at break from 25% to 180% and stress at break from 0.34 to 1.41 MPa. The material showed excellent network stability under cyclic strain loading, with no apparent hysteresis. The introduction of disulfide bonds allows the material to self-heal under UV exposure, extending its shelf life. Overall, this work presents an environmentally friendly approach for producing a sustainable elastomer that has potential for use in applications such as intelligent robots, smart wearable technology, and human–machine interfaces. |
format | Online Article Text |
id | pubmed-10644234 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | The Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-106442342023-11-15 Lipoic acid-based vitrimer-like elastomer Lan, Xiaohong Boetje, Laura Pelras, Théophile Ye, Chongnan Silvianti, Fitrilia Loos, Katja Polym Chem Chemistry Dynamic covalent networks (DCNs) are materials that feature reversible bond formation and breaking, allowing for self-healing and recyclability. To speed up the bond exchange, significant amounts of catalyst are used, which creates safety concerns. To tackle this issue, we report the synthesis of a lipoic acid-based vitrimer-like elastomer (LAVE) by combining (i) ring-opening polymerization (ROP) of lactones, (ii) lipoic acid modification of polylactones, and (iii) UV crosslinking. The melting temperature (T(m)) of LAVE is below room temperature, which ensures the elastic properties of LAVE at service temperature. By carefully altering the network, it is possible to tune the T(m), as well as the mechanical strength and stretchability of the material. An increase in polylactone chain length in LAVE was found to increase strain at break from 25% to 180% and stress at break from 0.34 to 1.41 MPa. The material showed excellent network stability under cyclic strain loading, with no apparent hysteresis. The introduction of disulfide bonds allows the material to self-heal under UV exposure, extending its shelf life. Overall, this work presents an environmentally friendly approach for producing a sustainable elastomer that has potential for use in applications such as intelligent robots, smart wearable technology, and human–machine interfaces. The Royal Society of Chemistry 2023-10-20 /pmc/articles/PMC10644234/ /pubmed/38013676 http://dx.doi.org/10.1039/d3py00883e Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/ |
spellingShingle | Chemistry Lan, Xiaohong Boetje, Laura Pelras, Théophile Ye, Chongnan Silvianti, Fitrilia Loos, Katja Lipoic acid-based vitrimer-like elastomer |
title | Lipoic acid-based vitrimer-like elastomer |
title_full | Lipoic acid-based vitrimer-like elastomer |
title_fullStr | Lipoic acid-based vitrimer-like elastomer |
title_full_unstemmed | Lipoic acid-based vitrimer-like elastomer |
title_short | Lipoic acid-based vitrimer-like elastomer |
title_sort | lipoic acid-based vitrimer-like elastomer |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10644234/ https://www.ncbi.nlm.nih.gov/pubmed/38013676 http://dx.doi.org/10.1039/d3py00883e |
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