高分子学报
高分子學報
고분자학보
ACTA POLYMERICA SINICA
2001年
3期
281-287
,共7页
活性自由基聚合%引发转移终止剂%反向原子转移自由基聚合%进展
活性自由基聚閤%引髮轉移終止劑%反嚮原子轉移自由基聚閤%進展
활성자유기취합%인발전이종지제%반향원자전이자유기취합%진전
原子转移自由基聚合(ATRP)是实现活性聚合的一种颇为有效的途径,可以实现多种单体的活性自由基聚合.反向原子转移自由基聚合(Reverse ATRP)的概念始提出于1995年,是对传统ATRP的改进和拓展.近年来关于此体系的引发剂的拓展、过渡金属及单体的适用性都得到了很大发展.本文简要综述了我们研究组在反向原子转移自由基聚合方面的研究进展.
原子轉移自由基聚閤(ATRP)是實現活性聚閤的一種頗為有效的途徑,可以實現多種單體的活性自由基聚閤.反嚮原子轉移自由基聚閤(Reverse ATRP)的概唸始提齣于1995年,是對傳統ATRP的改進和拓展.近年來關于此體繫的引髮劑的拓展、過渡金屬及單體的適用性都得到瞭很大髮展.本文簡要綜述瞭我們研究組在反嚮原子轉移自由基聚閤方麵的研究進展.
원자전이자유기취합(ATRP)시실현활성취합적일충파위유효적도경,가이실현다충단체적활성자유기취합.반향원자전이자유기취합(Reverse ATRP)적개념시제출우1995년,시대전통ATRP적개진화탁전.근년래관우차체계적인발제적탁전、과도금속급단체적괄용성도득도료흔대발전.본문간요종술료아문연구조재반향원자전이자유기취합방면적연구진전.
Atom transfer radical polymerization (ATRP) is an efficient way for living radical polymerization.Reverse ATRP was first reported by Matyjaszewski in 1995 and it is a development and improvement of conventional ATRP.In this review article,we summarize the progresses of reverse ATRP studies in our research group,especially the initiating systems consisting of thermal iniferter and metalic complex catalyst,that are the 1,1,2,2-tetraphenyl-1,2-ethanediol (TPED)/FeCl3/triphenylphosphine (PPh3),diethyl 2,3-dicyano-2,3-di(p-tolyl)succinate (DCDTS)or diethyl 2,3-dicyano-2,3-diphenylsuccinate (DCDPS)/CuCl2/bipyridine(bipy)and DCDPS/FeCl3/PPh3 initiating systems.Using these initating systems,well-defined PMMA and PSt with high molecular weights and quite narrow molecular weight distributions were successfully synthesized.1H-NMR analysis revealed that the resultant polymers were end functionalized by α-H[or α-C(CN)(C6H5)(CO2C2H5)] and ω-Cl groups.The polymers with ω-Cl groups can serve as macroinitiators to proceed chain extension reactions with fresh monomer and block copolymerization with a second monomer.The polymerization mechanisms belong to reverse ATRP.