以CuBr/N,N,N′,N′,N′ 五甲基二亚乙基三胺(简称NNN)为催化体系,研究了原子转移自由基聚合法(ATRP)PS b P(S co AN)两嵌段聚合物的合成。研究了聚合顺序对相对分子质量及其分布和嵌段效率的影响,并且用聚合物末端C—Br键的断裂能对实...以CuBr/N,N,N′,N′,N′ 五甲基二亚乙基三胺(简称NNN)为催化体系,研究了原子转移自由基聚合法(ATRP)PS b P(S co AN)两嵌段聚合物的合成。研究了聚合顺序对相对分子质量及其分布和嵌段效率的影响,并且用聚合物末端C—Br键的断裂能对实验结果进行了初步解释。展开更多
A series of styrene-acrylonitrile-acrylate(methyl acrylate,butyl acrylate,twelfth acrylate)terpolymers were prepared by bulk,solution and suspension polymeriation.The molecular weights of the terpolymers vary from 70,...A series of styrene-acrylonitrile-acrylate(methyl acrylate,butyl acrylate,twelfth acrylate)terpolymers were prepared by bulk,solution and suspension polymeriation.The molecular weights of the terpolymers vary from 70,000 to 140,000 determined by GPC.The composition of terpolymers could be controled by adjusting the proportion of monomer.展开更多
文摘A series of styrene-acrylonitrile-acrylate(methyl acrylate,butyl acrylate,twelfth acrylate)terpolymers were prepared by bulk,solution and suspension polymeriation.The molecular weights of the terpolymers vary from 70,000 to 140,000 determined by GPC.The composition of terpolymers could be controled by adjusting the proportion of monomer.