文献类型：期刊文献

英文题名：A Rapidly Self-Healing Supramolecular Polymer Hydrogel with Photostimulated Room-Temperature Phosphorescence Responsiveness

作者：Chen, Hui[1,2];Ma, Xiang[1,2];Wu, Shuaifan[1,2];Tian, He[1,2]

机构：[1]E China Univ Sci & Technol, Key Lab Adv Mat, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, Inst Fine Chem, Shanghai 200237, Peoples R China

年份：2014

卷号：53

期号：51

起止页码：14149

外文期刊名：ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

收录：;EI(收录号：20145100340161);WOS:【SCI-EXPANDED(收录号:WOS:000346484400035)】；

基金：We acknowledge the financial support from NSFC/China (21190033, 21272072, 21476075, and 21421004), the National Basic Research 973 Program, Shanghai Pujiang Program (13PJD011), and the Fundamental Research Funds for the Central Universities. Dr. Q. Zhang and X. Yao are also acknowledged for helping draw figures and record videos.

语种：英文

外文关键词：hydrogels; photostimulation; room-temperature phosphorescence; self-healing; supramolecular polymers

摘要：Development of self-healing and photostimulated luminescent supramolecular polymeric materials is important for artificial soft materials. A supramolecular polymeric hydrogel is reported based on the host-guest recognition between a beta-cyclodextrin (beta-CD) host polymer (poly-beta-CD) and an alpha-bromonaphthalene (alpha-BrNp) polymer (poly-BrNp) without any additional gelator, which can self-heal within only about one minute under ambient atmosphere without any additive. This supramolecular polymer system can be excited to engender room-temperature phosphorescence (RTP) signals based on the fact that the inclusion of beta-CD macrocycle with alpha-BrNp moiety is able to induce RTP emission (CD-RTP). The RTP signal can be adjusted reversibly by competitive complexation of beta-CD with azobenzene moiety under specific irradiation by introducing another azobenzene guest polymer (polyAzo).