文献类型：期刊文献

中文题名：Supramolecular gelator based on a [c2]daisy chain rotaxane:efficient gel-solution transition by ring-sliding motion

英文题名：Supramolecular gelator based on a [c2]daisy chain rotaxane:efficient gel-solution transition by ring-sliding motion

作者：Rongrong Tao[1];Qi Zhang[1];Sijia Rao[1];Xiuli Zheng[1];Mingming Li[1];Dahui Qu[1]

机构：[1]Key Laboratory for Advanced Materials and Institute of Fine Chemicals, School of Chemistry and Molecular Engineering,East China University of Science & Technology

年份：2019

卷号：62

期号：2

起止页码：245

中文期刊名：Science China Chemistry

外文期刊名：中国科学（化学英文版）

收录：Scopus;CSCD:【CSCD2019_2020】；PubMed;

基金：supported by the National Natural Science Foundation of China (21790361, 21871084, 21672060);the Fundamental Research Funds for the Central Universities (WJ1616011, WJ1213007, 222201717003);the Programme of Introducing Talents of Discipline to Universities (B16017)

语种：英文

中文关键词：supramolecular;polymer;hydrogen;bond;stimuli-responsive;gel

外文关键词：supramolecular polymer;hydrogen bond;stimuli-responsive;gel

摘要：A supramolecular gelator based on the bistable [c2]daisy chain rotaxane is designed and synthesized. The reversible actuation of the [c2]daisy chain renders the formed supramolecular gel with acid/base-responsive switching between gel and monomer solution. The efficient switching process is attributed to the ring-sliding effect of the rotaxane in response to acid/base stimuli.The ring-inhibited hydrogen bonding stacking results in a nearly quantitatively disassembly of the gel network after addition of base which is hard to be realized by traditional heating strategy in hydrogen-bonding-supported gel.
A supramolecular gelator based on the bistable [c2]daisy chain rotaxane is designed and synthesized. The reversible actuation of the [c2]daisy chain renders the formed supramolecular gel with acid/base-responsive switching between gel and monomer solution. The efficient switching process is attributed to the ring-sliding effect of the rotaxane in response to acid/base stimuli.The ring-inhibited hydrogen bonding stacking results in a nearly quantitatively disassembly of the gel network after addition of base which is hard to be realized by traditional heating strategy in hydrogen-bonding-supported gel.