Organocatalytic stereoselective cationic polymerization of vinyl ethers by employing a confined BrΦnsted acid as the catalyst  

作　　者：Zan Yang Xun Zhang Yu Jiang Qiang Ma Saihu Liao 

机构地区：[1]Key Laboratory of Molecule Synthesis and Function Discovery(Fujian Province University),State Key Laboratory of Photocatalysis on Energy and Environment,College of Chemistry,Fuzhou University,Fuzhou 350108,China [2]Beijing National Laboratory for Molecular Sciences,Beijing 100190,China

出　　处：《Science China Chemistry》2022年第2期304-308,共5页中国科学（化学英文版）

基　　金：supported by the Recruitment Program of Global Experts,Beijing National Laboratory for Molecular Sciences(BNLMS201913);Fuzhou University。

摘　　要：The properties of poly(vinyl ether)s(PVEs)are highly dependent on their tacticity,and the appealing thermoplastics features of isotactic PVEs have drawn considerable efforts to develop stereoselective cationic polymerization methods to access this class of polymers.However,reported methods that could achieve a high degree of tacticity control are limited to process employing metal-based Lewis acids,and with various limitations on catalyst loading,monomer scope,etc.Here,we introduce a metal-free stereoselective cationic polymerization of vinyl ethers by employing a class of chiral confined Br?nsted acids,imidodiphosphorimidates(IDPis),as the catalyst.This organocatalytic approach features its metal-free conditions,high efficiency,high stereoselectivity,single catalyst system,operation simplicity,etc.

关 键 词：ORGANOCATALYSIS stereoselective polymerization TACTICITY vinyl ethers BrΦnsted acids 

分 类 号：TQ316.3[化学工程—高聚物工业] TQ426