文献类型：期刊文献

中文题名：Hyperbranched Azopolymer with Quadruple Responsibility

作者：Chen Tian[1];Ke-Cong Zhou[2];Yu-Fei Lua[1];Jin-Jie Li[1];Yuan Yao[1];Xin-Feng Tao[1];Qi-Xin Zhuang[1];Yu-Feng Xie[2];Shao-Liang Ling[1]

机构：[1]Shanghai Key Laboratory of Advanced Polymeric Materials,Key Laboratory for Ultrafine Materials of Ministry of Education,School of Materials Science and Engineering,East China University of Science and Technology,Shanghai 200237,China;[2]Department of Periodontology,Shanghai Ninth People's Hospital,College of Stomatology,Shanghai Key Laboratory of Stomatology&Shanghai Research Institute of Stomatology,Shanghai Jiao Tong University,Shanghai 200011,China

年份：2021

卷号：39

期号：9

起止页码：1169

中文期刊名：Chinese Journal of Polymer Science

外文期刊名：高分子科学（英文版）

收录：CSTPCD;;Scopus;CSCD:【CSCD2021_2022】；

基金：This work was financially supported by the National Natural Science Foundation of China(Nos.52073092,52073094 and 51873061);the Projects of Shanghai Municipality(Nos.18JC1410802 and 17JC400700).

语种：英文

中文关键词：Hyperbranched;Azopolymer;Multiple responsibility;Self-assembly

摘要：Simply constructing multiple responsive polymers with obvious shape and dimension variations on their assemblies upon different stimuli is still rarely reported.In this study,we report a hyperbranched polymer named HPAzoBAHB-star-PEG_(9) with quadruple-response to light,temperature,pH and oxidation stimuli.The polymer contains azobenzene chromophore,sulfide,amide and amine groups in its hydrophobic hyperbranched core,and the core is capped with hydrophilic polyethylene glycol(PEG_(9))arms.HPAzoBAHB-5tar-PEG_(9) could assemble into unusual leaf-like lamellar micelles at 25℃ under the guidance of orderly arranged H-aggregate of azobenzene moieties.These leaf-like lamellar micelles can transform into vesicles upon UV irradiation and lower temperature,or convert to smaller spherical micelles in acidic or oxidative environments,respectively,with the destroy of ordered azobenzene arrangements.This quadruple-responsive hyperbranched polymer is suitable to con struct multiple stimuli-resp on sive micro/nanostructures,or accurate delivery and release following subtle stimuli seque nces.