采用RATRP沉淀聚合法合成聚合物PMMA和PSt  

Synthesis of Polymer PMMA and PSt by RATRP Precipitation Polymerization Method

作　　者：马艳彬[1] 陈永平[1] 廖双泉[1] 钟杰平[2] 

机构地区：[1]海南大学材料与化工学院,海南海口570228 [2]广东海洋大学理学院,广东湛江524088

出　　处：《合成化学》2013年第4期491-493,504,共4页Chinese Journal of Synthetic Chemistry

基　　金：海南大学科技基金资助项目(hd09xm80)

摘　　要：以甲基丙烯酸甲酯(MMA)或苯乙烯(St)为单体,偶氮二异丁腈(AIBN)为引发剂,乙醇为溶剂,CuCl2/PMDETA(N,N,N',N″,N″-五甲基二乙烯基三胺)为催化体系,MMA或St经反向原子转移自由基沉淀聚合法合成了聚合物PMMA或PSt。研究结果表明:PMMA和PSt的分子量分布较窄(Mw/Mn<1.3),聚合反应速率对单体呈一级动力学特征,数均分子量与单体转化率呈线性关系。反应具有"活性"/可控聚合的特征。Polymer,PMMA（or PSt） were synthesized by reverse atom transfer radical polymerization using methyl methacrylate（MMA）[or styrene（St）] as the monomer,azodiisobutyronitrile（AIBN） as the initiator,ethanol as the solvent and CuCl2/PMDETA（N,N,N′,N″,N″-pentamethyldiethylenetriamine） as the catalytic system.The study results showed that Mw/Mn of PMMA and PSt were 1.3 and the rates of polymerization initiated by the system exhibited first-order kinetics with respect to the monomer.A linear increase of number average molecular weight versus monomer conversion was observed for the initiation system.

关 键 词：甲基丙烯酸甲酯 苯乙烯 沉淀聚合 反向原子转移自由基聚合 聚合物 

分 类 号：O636.9[理学—高分子化学]