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Self-Healing Hydrogels with both LCST and UCST through Cross-Linking Induced Thermo-Response
Self-healing hydrogels have drawngreat attention in the past decade since the self-healing property is one of the characteristics of living creatures. In this study, poly(acrylamide-stat-diacetone acrylamide) P(AM-stat-DAA) with a pendant ketone group was synthesized from easy accessible monomers, a...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6473816/ https://www.ncbi.nlm.nih.gov/pubmed/30960473 http://dx.doi.org/10.3390/polym11030490 |
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author | Zhao, Haifeng An, Heng Xi, Baozhong Yang, Yan Qin, Jianglei Wang, Yong He, Yingna Wang, Xinguo |
author_facet | Zhao, Haifeng An, Heng Xi, Baozhong Yang, Yan Qin, Jianglei Wang, Yong He, Yingna Wang, Xinguo |
author_sort | Zhao, Haifeng |
collection | PubMed |
description | Self-healing hydrogels have drawngreat attention in the past decade since the self-healing property is one of the characteristics of living creatures. In this study, poly(acrylamide-stat-diacetone acrylamide) P(AM-stat-DAA) with a pendant ketone group was synthesized from easy accessible monomers, and thermo-responsive self-healing hydrogels were prepared through a series of diacylhydrazide compounds cross-linking without any additional stimulus. Although the copolymers do not show thermo-response, the hydrogels became thermo-responsive andboth the lower critical solution temperature (LCST) and upper critical solution temperature (UCST) varied with the composition of the copolymer and structure of cross-linkers. With a dynamic covalent bond connection, the hydrogel showed gel-sol-gel transition triggered by acidity, redox, and ketone to acylhydrazide group ratios. This is another interesting cross-linking induced thermo-responsive (CIT) hydrogel with different properties compared to PNIPAM-based thermo-responsive hydrogels. The self-healing hydrogel with CIT properties could have great potential for application in areas related to bioscience, life simulation, and temperature switching. |
format | Online Article Text |
id | pubmed-6473816 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-64738162019-04-29 Self-Healing Hydrogels with both LCST and UCST through Cross-Linking Induced Thermo-Response Zhao, Haifeng An, Heng Xi, Baozhong Yang, Yan Qin, Jianglei Wang, Yong He, Yingna Wang, Xinguo Polymers (Basel) Article Self-healing hydrogels have drawngreat attention in the past decade since the self-healing property is one of the characteristics of living creatures. In this study, poly(acrylamide-stat-diacetone acrylamide) P(AM-stat-DAA) with a pendant ketone group was synthesized from easy accessible monomers, and thermo-responsive self-healing hydrogels were prepared through a series of diacylhydrazide compounds cross-linking without any additional stimulus. Although the copolymers do not show thermo-response, the hydrogels became thermo-responsive andboth the lower critical solution temperature (LCST) and upper critical solution temperature (UCST) varied with the composition of the copolymer and structure of cross-linkers. With a dynamic covalent bond connection, the hydrogel showed gel-sol-gel transition triggered by acidity, redox, and ketone to acylhydrazide group ratios. This is another interesting cross-linking induced thermo-responsive (CIT) hydrogel with different properties compared to PNIPAM-based thermo-responsive hydrogels. The self-healing hydrogel with CIT properties could have great potential for application in areas related to bioscience, life simulation, and temperature switching. MDPI 2019-03-13 /pmc/articles/PMC6473816/ /pubmed/30960473 http://dx.doi.org/10.3390/polym11030490 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Zhao, Haifeng An, Heng Xi, Baozhong Yang, Yan Qin, Jianglei Wang, Yong He, Yingna Wang, Xinguo Self-Healing Hydrogels with both LCST and UCST through Cross-Linking Induced Thermo-Response |
title | Self-Healing Hydrogels with both LCST and UCST through Cross-Linking Induced Thermo-Response |
title_full | Self-Healing Hydrogels with both LCST and UCST through Cross-Linking Induced Thermo-Response |
title_fullStr | Self-Healing Hydrogels with both LCST and UCST through Cross-Linking Induced Thermo-Response |
title_full_unstemmed | Self-Healing Hydrogels with both LCST and UCST through Cross-Linking Induced Thermo-Response |
title_short | Self-Healing Hydrogels with both LCST and UCST through Cross-Linking Induced Thermo-Response |
title_sort | self-healing hydrogels with both lcst and ucst through cross-linking induced thermo-response |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6473816/ https://www.ncbi.nlm.nih.gov/pubmed/30960473 http://dx.doi.org/10.3390/polym11030490 |
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