A hyperbranched polymer-based water-resistant adhesive:Durable underwater adhesion and primer for anchoring anti-fouling hydrogel coating

查看全文 作　　者：ZHANG [1]YaHan;CUI [1]ChunYan;SUN [1]YaGe;ZHANG [1]XiaoPing;YANG [1]Rong;YANG [1]JianHai;XIE [2]Fei;LIU [1]WenGuang

机构地区：[1]School of Materials Science and Engineering,Tianjin University,Tianjin 300350,China;[2]Shandong Zhushi Pharmaceutical Group Co.,Lid.,Heze 274300,China

出　　处：《Science China(Technological Sciences)》索引2022年第65卷第1期,共13页

基　　金：supported by the National Key Research and Development Program(Grant No.2018YFA0703100);the National Natural Science Foundation of China(Grant No.51733006)。 摘　　要：Direct deployment of gluing and achieving durable robust adhesion in water is challenging due to difficulty in repelling interface water.This work reports a novel hyperbranched polymer-based water-resistant adhesive(HBPBA)based on Michael addition reaction of multi-vinyl monomers with dopamine and 3-aminophenylboronic acid.Upon encountering water,the HBPBA forms coacervates whose hydrophobic chains aggregate to displace interface water,and meanwhile the catechols exposing outwards contribute to underwater adhesion.The HBPBA can strongly glue diverse substrates including PTFE,PE,PET,ceramic,Ti and stainless steel.The HBPBA can maintain stable adhesion in different environments,such as tap water,simulated sea water,PBS,and a wide range of pH solutions(pH 2 to 10)for 3 months,supposedly due to the complexation of catechol with boronic acid.Intriguingly,HBPBA film can be bonded to the titanium surface as a primer,which firmly anchors the antifouling PNAGAPCBAA hydrogel coating through copolymerization of remaining double bonds in HBPBA and NAGA plus CBAA.The PNAGA-PCBAA hydrogel-modified titanium is biocompatible and shows outstanding antifouling ability both in vitro and in vivo.This work proposes a new strategy for creating underwater deployable and water-resistant adhesives that may find promising applications in engineering and biomedical fields. 关键词：hyperbranched polymer ADHESIVE ANTI-FOULING hydrogel underwater adhesion

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A hyperbranched polymer-based water-resistant adhesive:Durable underwater adhesion and primer for anchoring anti-fouling hydrogel coating

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