文献类型：期刊文献

英文题名：Far-Red Light-Induced Reversible Addition-Fragmentation Chain Transfer Polymerization Using a Man-Made Bacteriochlorin

作者：Cao, Hongliang[1];Wang, Guicheng[1];Xue, Yudong[1];Yang, Guoliang[1];Tian, Jia[1];Liu, Feng[1];Zhang, Weian[1]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai Key Lab Funct Mat Chem, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2019

卷号：8

期号：5

起止页码：616

外文期刊名：ACS MACRO LETTERS

收录：;EI(收录号：20192407032190);WOS:【SCI-EXPANDED(收录号:WOS:000469312000023)】；

基金：The support from the Shanghai Natural Science Foundation (18ZR1408300) is acknowledged. This work was also financially supported by the National Natural Science Foundation of China (Nos. 21574039 and 51173044).

语种：英文

外文关键词：Atom transfer radical polymerization - Molecular oxygen - Polydispersity

摘要：To overcome the challenge of photoregulated living radical polymerization in long-wavelength radiation, a photoinduced electron transfer reversible addition fragmentation chain transfer (PET-RAFT) polymerization in far-red wavelength (lambda(max) = 740 nm) is reported by using a man-made bacteriochlorin as a photocatalyst. A reduced tetraphenylporphyrin (RTPP) having a natural bacteriochlorin macrocycle ring with two reduced pyrrole rings was synthesized with strong absorption in the far-red light region (700-765 nm) and applied for the PET-RAFT polymerization as a photo-redox catalyst, which offered excellent control over molecular weight and polydispersities and oxygen tolerance for the polymerization of (methyl) acrylates monomers, and exhibited attractive features of "living" radical polymerization. Benefiting from high penetration of far-red light, the polymerization was also well-controlled when the reaction vessel was covered by translucent animal tissue barriers, for example, skin.