甲基丙烯酸三氟乙酰氧乙酯的聚合  

THE POLYMERIZATION OF 2-[(TRIFLUOROACETYL) OXY]ETHYL METHACRYLATE

作　　者：李玉廷 张伟[2] 张敏[2] 张岩[2] 王瑾珊[2] 黄家贤[2] 

机构地区：[1]泰达生物科技股份有限公司,天津300457 [2]南开大学化学系,天津300071

出　　处：《高分子材料科学与工程》2003年第3期94-97,共4页Polymer Materials Science & Engineering

摘　　要：对甲基丙烯酸三氟乙酰氧乙酯 (TFAOEMA)的阴离子聚合及原子转移自由基聚合进行了研究。常用的阴离子引发剂如丁基锂、1 ,1 -二苯基己基锂等很难引发 TFAOEMA的阴离子聚合 ,而碱性较弱的引发剂如三乙基铝却容易引发 ,且产率较高。以氯化亚铜、五甲基二乙基三胺、溴代丙酸乙酯为引发体系的 TFAOEMA的本体原子转移自由基聚合符合活性聚合特征。但在四氢呋喃为溶剂的原子转移自由基聚合中却存在活性中心失活现象。以末端含卤素的聚甲基丙烯酸甲酯为大分子引发剂 ,引发 TFAOE-MA的原子转移自由基聚合 。trifluoroacetyl)oxy]ethyl methacrylate (TFAOEMA) was polymerized by using the anionic polymerization and atom transfer radical polymerization technique. Some common anionic initiators (butyl lithium and 1,1 diphenylhexyllithium) can′t initiate its polymerization. While some weaker bases, for example triethylalumium, can initiate its anionic polymerization. The atom transfer radical polymerization (copper monochloride/pentamethyldiethylenetriamine as the catalyst, ethyl 2 bromopropinate as the initiator) of TFAOEMA was proved to be a controlled polymerization. When the polymerization was carried out in THF, a termination of the active center was observed as the molecular weight reached a certain degree. Using the halogen terminated PMMA as the macromolecular initiator, a diblock copolymer was obtained by the atom transfer radical polymerization of TFAOEMA.

关 键 词：甲基丙烯酸三氟乙酰氧乙酯 聚合 阴离子聚合 原子转移自由基聚合 

分 类 号：TQ325.7[化学工程—合成树脂塑料工业] TQ316.322