Paper Publications

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Affiliation of Author(s):化学与生命科学学院

Teaching and Research Group:化学教研室

Journal:Colloids and Surfaces A

Funded by:省、市、自治区科技项目

Key Words:Polyvinyl alcohol Physically cross-linking High-strength hydrogel pH-responsive Self-healing

Abstract:The fabrications of hydrogel with both good mechanical properties and self-healing ability are still challenging issues. Herein, we report a high strength and pH responsive hydrogel based on polyvinyl alcohol (PVA) and poly 6-acrylamidohexanoic acid (PAACA) using dual physically cross-linking strategy. Owing to the H-bonds and the crystallites domains, the prepared hydrogel present considerable tensile strength. Meanwhile, the PAACA could facilitate the crystallization behavior of PVA, resulting in the fabrication of hydrogel through one simple freezing step instead of repeated freeze/thaw cycles. Furthermore, the hydrogel exhibit reversible pH responsive selfhealing and swelling property stemming from protonated and deprotonated of the carboxyl groups in PAACA side chains, allowing external control over the healing and swelling process.

Co-author:梁家其,李洋洋,卢雪婷,fuhai,景厚超,韩冬雪,牛利

First Author:guopeipei

Indexed by:Journal paper

Page Number:1

Translation or Not:no

Date of Publication:2019-03-14