文献类型：期刊文献

英文题名：Photo-induced energy-transfer polymerization

作者：Liu, Jian[1,2];Wei, Yaxiong[3];Ma, Liangwei[1,2];Jin, Xin[1,2];Sun, Siyu[1,2];Zhou, Shuyao[4];Xu, Xinsheng[3];Tian, He[1,2];Ma, Xiang[1,2]

机构：[1]East China Univ Sci & Technol, Inst Fine Chem, Frontiers Sci Ctr Materiobiol & Dynam Chem, Sch Chem & Mol Engn,Key Lab Adv Mat, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Feringa Nobel Prize Scientist Joint Res Ctr, Frontiers Sci Ctr Materiobiol & Dynam Chem, Inst Fine Chem,Sch Chem & Mol Engn, Shanghai 200237, Peoples R China;[3]Anhui Normal Univ, Sch Phys & Elect Informat, Anhui Prov Key Lab Optoelect Mat Sci & Technol, Wuhu 241002, Peoples R China;[4]Univ Calif Los Angeles, Dept Chem & Biochem, Los Angeles, CA 90095 USA

年份：2025

卷号：12

期号：12

外文期刊名：NATIONAL SCIENCE REVIEW

收录：;EI(收录号：20255019697935);WOS:【SCI-EXPANDED(收录号:WOS:001632227700001)】；

基金：This work was supported by the National Natural Science Foundation of China (22125803, T2488302 and 22020102006), the Science and Technology Commission of Shanghai Municipality (24DX1400200) and the Fundamental Research Funds for the Central Universities.

语种：英文

外文关键词：polymerization; triplet-triplet energy transfer; photocatalyst

摘要：In conventional photo-induced polymerization strategies, the active species that initiate the reaction tend to be exogenous radical species. Inspired by photo-induced cycloaddition reactions, in this study, we investigated photo-induced polymerization from the perspective of energy-transfer processes. Utilizing low-energy, highly reactive triplet species of olefin molecules as energy acceptors, a polymerization strategy without the need for exogenous active components was developed. Triplet species from various sources were able to induce polymerization, demonstrating the excellent versatility of this strategy. The reaction mechanism was thoroughly investigated with controlled experiments and spectroscopic methods using thiochromanone as a template. It was clearly established that the key to polymerization is an active triplet species rather than a conventional radical species. As a result, the findings of this study stimulate further discussion on the role of monomers in photo-induced polymerization. A polymerization reaction mechanism based on triplet energy transfer has been proposed, which exhibits a remarkably broad range of applications.