A novel well-defined triblock copolymer containing perfluorocyclobutyl group was prepared by the combination of mechanism transformation strategy, thermal cycloaddition [2π＋2π] polymerization and atom transfer radi...A novel well-defined triblock copolymer containing perfluorocyclobutyl group was prepared by the combination of mechanism transformation strategy, thermal cycloaddition [2π＋2π] polymerization and atom transfer radical polymerization （ATRP）. Firstly, a macroinitiator with two ATRP initiating end groups was synthesized by thermal polymerization of 4,4＇-bis-（trifluorovinyloxy）biphenyl （BTFVBP） and sequential end-capping with a difunctional compound containing trifluorovinyl and ATRP initiation group. Secondly, this macroinitiator initiated ATRP of t-butyl acrylate to synthesize PtBA-b-PBTFVBP-b-PtBA triblock copolymer. This copolymer was hydrolyzed to afford PAA-b-PBTFVBP-b-PAA amphiphilic triblock copolymer. This kind of fluorine-containing well-defined structure should benefit the study of self-assembly behaviors.展开更多
文摘A novel well-defined triblock copolymer containing perfluorocyclobutyl group was prepared by the combination of mechanism transformation strategy, thermal cycloaddition [2π＋2π] polymerization and atom transfer radical polymerization （ATRP）. Firstly, a macroinitiator with two ATRP initiating end groups was synthesized by thermal polymerization of 4,4＇-bis-（trifluorovinyloxy）biphenyl （BTFVBP） and sequential end-capping with a difunctional compound containing trifluorovinyl and ATRP initiation group. Secondly, this macroinitiator initiated ATRP of t-butyl acrylate to synthesize PtBA-b-PBTFVBP-b-PtBA triblock copolymer. This copolymer was hydrolyzed to afford PAA-b-PBTFVBP-b-PAA amphiphilic triblock copolymer. This kind of fluorine-containing well-defined structure should benefit the study of self-assembly behaviors.
