【摘要】 以2-溴异丁酸季戊四醇四酯(PT-Br)为引发剂、氯化亚铜为催化剂、联二吡啶(bpy)为配位剂,通过原子转移自由基聚合(ATRP)成功合成了四臂聚甲基丙烯酸甲酯星形聚合物(StarPMMA).通过1H-NMR和GPC等手段对星形聚合物的结构和分子量进行了表征,证实聚甲基丙烯酸甲酯是四臂星形结构.更多还原

【Abstract】 The synthesis of 4-arm methyl methacrylate star polymer has been achieved by atom transfer radical polymerization using CuCl as catalyst,bpy as ligand and pentaerythritol terakis(2-bromoisobutyrate) as the initiator.The star polymer was characterized by 1H-NMR and GPC,by which the precise 4-arm structure of the PMMA was confirmed.更多还原