Dispersity Regulation in Photo-controlled Radical Polymerization by Merging Aryl Sulfonyl Chloride Initiators and Mixed Disulfide Agents  

作　　者：ZHANG Lu ZHANG Zexi CHEN Mao 

机构地区：[1]Department of Macromolecular Science,State Key Laboratory of Molecular Engineering of Polymers,Fudan University,Shanghai 200433,P.R.China

出　　处：《Chemical Research in Chinese Universities》2023年第5期816-821,共6页高等学校化学研究（英文版）

基　　金：This work was supported by the National Natural Science Foundation of China(No.22171051);the Shanghai Pilot Program for Basic Research-Fudan University 21TQ1400100,China(No.21TQ007);the Project of the State Key Laboratory of Molecular Engineering of Polymers,Fudan University,China。

摘　　要：On-demand regulation of molecular weight distribution(MWD)is crucial to influence the properties of polymers.In this work,we reported an organocatalyzed photo-controlled radical polymerization(photo-CRP)from the tosyl chloride initiator by combining two disulfides as chain transfer agents.This novel synthetic protocol allows facile access toward well-defined polymers with tunable MWDs and predetermined molecular weights.Experiments including structural characterization,kinetic investigation and chain-extension polymerization exhibited good chain-growth control for polymers of different dispersities.Given the easy accessibility of the initiating site(sulfonyl chloride)on many aromatic sources,this work presents a promising avenue to modify such substances with polymers of tailored MWDs,chain lengths and repeating units under metal-free and mild conditions driven by light.

关 键 词：Reversible deactivation radical polymerization Photo-controlled radical polymerization ORGANOCATALYST Molecular weight distribution Polymer chemistry 

分 类 号：O62[理学—有机化学]