文献类型：期刊文献

英文题名：Constructing High Performance Hydrogels with Strong Underwater Adhesion through a "Mussel Feet-Rock" Inspired Strategy

作者：Zhang, Rui[1];Peng, Hongwei[1];Zhou, Tianxu[1];Yao, Yuan[2];Zhu, Xuedong[1];Bi, Bowei[2];Zhane, Xing[2];Liu, Binxiu[2];Niu, Linyan[2];Wang, Wenqing[2]

机构：[1]East China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China

年份：2019

卷号：1

期号：11

起止页码：2883

外文期刊名：ACS APPLIED POLYMER MATERIALS

收录：;EI(收录号：20213610850068);WOS:【SCI-EXPANDED(收录号:WOS:000496040500010)】；

基金：This work was supported by the National Natural Science Foundation of China (51573088, 21374029, 21776076) and the Projects of Shanghai Municipality (18JC1410802).

语种：英文

外文关键词：hydrogel; mussel-inspired; high performance; underwater adhesion; noncovalent cross-link

摘要：In this study, high performance hydrogels with strong underwater adhesion were constructed through a "mussel feet-rock" inspired strategy, in which a random copolymer containing side-chain positive charges and catechol groups (PMD) simulated the adhesive proteins of mussel, and poly(acrylic acid) (PAA) mimicked the rocky surface. PMD and PAA chains could noncovalently cross-link together through hydrogen bonding, charge interaction, and chain entanglement. Catechol groups further provide the hydrogel strong adhesion ability. Taking advantage of this strategy, the obtained PAA/PMD hydrogels featured the best stretchability among reported hydrogels and intensive repeatable adhesion behavior, and further exhibited unusual wet-enhanced tensile and shear strength together with durable underwater adhesion. These findings are valuable for the development of mussel-inspired adhesives and high performance hydrogels.