Journal
JOURNAL OF POLYMER RESEARCH
Volume 28, Issue 4, Pages -Publisher
SPRINGER
DOI: 10.1007/s10965-021-02492-3
Keywords
Hydrogel; Self-healing; Thermo-response; Gel-sol-gel transition
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Funding
- Natural Science Foundation of Hebei Province [B2018201140, H2019201084]
- Program of Excellent Innovative Talents in Hebei Provincial Institution of Higher Education [SLRC2017048]
- State key laboratory of Organic-Inorganic Composites [oic-202001005]
- Jiangsu Key Laboratory of Advanced Functional Polymers Design and Application, Soochow University
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This study focused on the synthesis of thermo-responsive hydrogels with ketone groups, showing excellent mechanical properties and chemical stabilities. The hydrogel demonstrated reversible gel-sol transitions under different conditions and exhibited wonderful biocompatibility, extending its potential applications as biomaterials.
Based on the favorable biocompatibility, thermo-responsive hydrogels have attracted much attention. Therefore, more and more researchers have focused on the synthesis, characterizations and applications of thermo-responsive hydrogels.In this study, copolymer of P(N-hydroxymethyl acrylamide-co-diacetone acrylamide) P(NAM-co-DAA) with ketone groups were prepared to construct the thermo-responsive hydrogel through cross-linking induced thermo-response (CIT). The dihydrazide compounds were employed to cross-link the copolymer to make a self-healing hydrogel which containing ketone type reversible acylhydrazone bond. The resultant self-healing hydrogel has shown the excellent mechanical properties and chemical stabilities. At the same time, the hydrogel presented reversible gel-sol based on the pH value and group ratio. These thermo-responsive self-healing hydrogels also demonstrate wonderful biocompatibility, which extends its potential applications as biomaterials.
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