在四官能团引发剂存在下的自缩合乙烯基聚合反应制备丙烯酸酯类超支化共聚物

作     者：洪春雁 邹应芳 潘才元 

作者机构：中国科学技术大学高分子科学与工程系合肥230026 

出 版 物：《高分子学报》 (Acta Polymerica Sinica)

年 卷 期：2002年第12卷第5期

页      面：685-687页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

主　　题：丙烯酸酯 超支化共聚物 自缩合乙烯基共聚合反应 原子转移自由基聚合 四官能团引发剂 支化度 

摘      要：Hyperbranched polyacrylate copolymers were synthesized by self\|condensing vinyl copolymerization (SCVCP) of 2\|[(2\|bromopropionyl)oxy]ethyl acrylate(BPEA) and methyl acrylate(MA) in the presence of a tetrafunctional initiator(THABI).The structures of the polymers obtained were characterized by 1H\|NMR and SEC/refractive index(RI)/right anagle laser light scattering(RALLS)/differential viscometer(DV).Molecular weight(MW),molecular weight distribution(MWD) and degree of branching(DB) were influenced by conversion and initial feed molar ratio of BPEA,MA and *** addition of THABI can narrow the MWDs of the polymers *** results are consistent with our simulation result.