聚羧酸铜/亚硫酸钠体系引发甲基丙烯酸甲酯聚合的研究  

STUD IES ON THE POL YMER IZATON OF METHYL METHACRYLATE INITIATED BY "ARBUTUS" CURRIC POLYCARBOXYLATE/SOD IUM SULFITE SYSTEM

作　　者：杨超雄[1] 林力克[1] 吴锦远[1] 

机构地区：[1]中国科学院广州化学研究所

出　　处：《高分子学报》1989年第1期12-17,共6页Acta Polymerica Sinica

基　　金：国家科学基金

摘　　要：以杨梅型(聚丙烯接枝)聚羧酸铜/亚硫酸钠体系引发甲基丙烯酸甲酯水溶液聚合,测得表现聚合速率 R_p=1.2×10^(14)e^(-21,400/RT)[MMA]^(1.3)[Na_2SO_3]^(0.5)[P-Cu]~0 聚合按自由基机理进行。聚羧酸铜/亚硫酸钠/甲基丙烯酸甲酯之间通过“络合-氢转移”过程产生初级自由基。The polymerization of methyl methacrylate in aqueous solution is initiated by cupric polypropylene-graft polycarboxylate/sodium sulfite system. The overall polymerization rate can be expressed asThe polymerization is proceeded by free radical mechanism. The primary radicals are formed by the process of 'complexation - hydrogen transformation' between cupric polycarboxylate/sodium sulfite/methyl methacrylate.

关 键 词：亚硫酸钠 丙烯酸甲酯 聚合 

分 类 号：O632.52[理学—高分子化学]