文献类型：期刊文献

英文题名：A Dual-Modality Photoswitchable Supramolecular Polymer

作者：Zhang, Qiwei;Qu, Da-Hui[1];Wu, Junchen;Ma, Xiang;Wang, Qiaochun;Tian, He

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

年份：2013

卷号：29

期号：17

起止页码：5345

外文期刊名：LANGMUIR

收录：;EI(收录号：20131916318381);WOS:【SCI-EXPANDED(收录号:WOS:000318333400029)】；

基金：We thank the NSFC/China (21272073, 21190033) and National Basic Research 973 Program (2013CB733700). D.-H.Q, thanks the Foundation for the Author of National Excellent Doctoral Dissertation of China (200957), the Fok Ying Tong Education Foundation (121069), the Fundamental Research Funds for the Central Universities, and Innovation Program of Shanghai Municipal Education Commission, and the Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry, for financial support.

语种：英文

外文关键词：Functional polymers - Functional materials

摘要：Covalent or noncovalent linked polymers with stimuli-responsive properties have been well researched as a kind of advanced functional materials. However, little effort has been devoted to establishing a bridge for switching between covalent polymers and noncovalent polymers. Actually, such unitive. system is promising because it can combine their chemical advantages of two types of polymers in a single and tunable platform. Herein, by taking advantage of reversible photodimerization of coumarins and host guest assemblies with gamma-cyclodextrin (gamma-CD), we demonstrate a simple and effective way to construct a dual modality supramolecular polymer, which can be switched between a noncovalent polymer and its corresponding covalent polymer in response to light stimuli. Moreover, this unique switchable polymer can also be employed to construct a dual-stimuli responsive supramolecular hydrogel with the surfactant cetyl trimethylammonium bromide (CTAB). This methodology establishes a bridge between the two "polymer mansions" and is promising to open a new class of photoswitchable materials.