文献类型：期刊文献

英文题名：A self-assembled photoresponsive gel consisting of chiral nanofibers

作者：Zou, Lei[1];Han, Dan;Yuan, Zhiyi;Chang, Dongdong;Ma, Xiang[1]

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

年份：2018

卷号：14

起止页码：1994

外文期刊名：BEILSTEIN JOURNAL OF ORGANIC CHEMISTRY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000441273100001)】；

基金：This work was financially supported by the National Natural Science Foundation of China (Nos. 21722603, 21302056 and 21476075).

语种：英文

外文关键词：chirality; nanostructure; organogel; photoresponse; self-assembly

摘要：A novel compound based on a glutamic acid skeleton, containing azobenzene as a photoresponsive group and ureidopyrimidinone (UPy) as a connection site, was designed and synthesized. The monomer is capable of forming an organogel in nonpolar organic solvents and different types of nanostructures in other solvents. The state of the gel and the chirality of the nanostructures could both be adjusted by subsequent light irradiation at different wavelengths. The helical nanofiber-like morphology was verified in the internal structure of the gel. The performance of this gel was investigated by a series of methods, such as UV-vis absorption spectroscopy, circular dichroism, scanning electron microscopy and rheological techniques. This work provides a new method for facile synthesis of chiro-optical gels.