Hybrid copolymerization of cyclic and vinyl monomers

• 作 者: YANG HongJun XU Jinbao ZHANG GuangZhao
• 机 构: Department of Chemical Physics,University of Science and Technology of China,Faculty of Materials Sc
• 出 处: Science China(Chemistry)
• 发表日期: 2013年08期
• 关键词: vinyl dimethylamino polymerization acrylate monomer copolymer catalyze lactone b

In this work,we report the hybrid copolymerization of various cyclic monomers and vinyl monomers.Our studies demonstrate that 1-tert-butyl-4,4,4-tris-(dimethylamino)-2,2-bis[tris(dimethylamino) phophoranyliden-amino]-2 5,5-catenadi(phosphazene) (t-BuP 4) can catalyze the hybrid copolymerization of caprolactone (CL),lactide (LA) or cyclic carbonate ester with acrylate or methyl acrylate.However,the polymerization of cyclosiloxane with vinyl monomers yields two corresponding homopolymers,and the polymerization of lactone with acrylonitrile (AN) produces only polyacrylonitrile.Clearly,the extent of matching of activity between a monomer and an active center determines whether or not there is hybrid copolymerization.

In this work, we report the copolymerization of various cyclic monomers and vinyl monomers. Our studies demonstrate that 1-tert-butyl-4,4,4-tris- (dimethylamino) -2,2- bis [tris (dimethylamino) phophoranyliden -amino] -2 5,5-catenadi (phosphazene) (t-BuP 4) can catalyzed the copolymerization of caprolactone (CL), lactide (LA) or cyclic carbonate ester with acrylate or methyl acrylate. with vinyl monomers yield two corresponding homopolymers, and the polymerization of lactone with acrylonitrile (AN) produces only polyacrylonitrile. Clearly, the extent of matching between activity between a monomer and an active center determines whether or not there is is hybrid copolymerization.