文献类型：期刊文献

英文题名：Photocontrollable Supramolecular Self-Assembly of a Porphyrin Derivative that Contains a Polyhedral Oligomeric Silsesquioxane (POSS)

作者：Zhang, Yong[1];Yue, Tao[1];Cao, Hongliang[1];Gao, Yun[1];Zhang, Weian[1]

机构：[1]East China Univ Sci & Technol, Shanghai Key Lab Adv Polymer Mat, Shanghai 200237, Peoples R China

年份：2017

卷号：6

期号：8

起止页码：1034

外文期刊名：ASIAN JOURNAL OF ORGANIC CHEMISTRY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000407796200018)】；

基金：This work was financially supported by the National Natural Science Foundation of China (21574039 and 51173044) and the State Key Laboratory for Modification of Chemical Fibers and Polymer Materials (LK1614).

语种：英文

外文关键词：click chemistry; photochemistry; porphyrins; self-assembly; supramolecular chemistry

摘要：In this study, we have synthesized a new photosensitive organic-inorganic POSS-containing hybrid porphyrin derivative (H2TPP-Azo-POSS), in which azobenzene was used as a bridge to conjugate the porphyrin and POSS, by using click chemistry. The self-assembly behavior of H2TPP-Azo-POSS was studied at different concentrations in CHCl3 and in CHCl3/n-hexane mixed solvent systems. Our results showed that the self-assembled morphology of H2TPP-Azo-POSS could be tuned by varying the concentration and polarity of the solvent. Spherical micelles and linear nanowires could be obtained in CHCl3, whilst vesicles could be formed in CHCl3/n-hexane mixtures with low polarities. The supramolecular self-assembled morphologies of H2TPP-Azo-POSS demonstrated a light-triggered transition behavior, whilst the size of the assembled aggregates decreased significantly under UV irradiation.