A new effecient catalyst system(FeCl 3/2PPh 3) for the “living”/controlled radical polymerization of butyl methacrylate by a reverse ATRP process was reported in this paper.With the presence of this catalyst system,...A new effecient catalyst system(FeCl 3/2PPh 3) for the “living”/controlled radical polymerization of butyl methacrylate by a reverse ATRP process was reported in this paper.With the presence of this catalyst system,the number average molecular weights of the obtained polymer increased in direct proportion with monomer conversion,and the MWDs (molecular weight disctributions) were narrow throughout the reactions(1 17< w/ n<1 22).This reaction system did not include the conventional initiators which were used to generate the primary radicals.展开更多
采用 Cu 催化剂和偶氮引发剂进行了甲基丙烯酸丁酯的反向原子转移自由基乳液聚合 ,研究了乳化剂、催化剂、反应时间对乳液稳定性、乳胶粒大小和形态以及聚合反应可控性的影响。结果表明原子转移自由基乳液聚合和常规乳液聚合存在着很大...采用 Cu 催化剂和偶氮引发剂进行了甲基丙烯酸丁酯的反向原子转移自由基乳液聚合 ,研究了乳化剂、催化剂、反应时间对乳液稳定性、乳胶粒大小和形态以及聚合反应可控性的影响。结果表明原子转移自由基乳液聚合和常规乳液聚合存在着很大的差异 ,特别在成核机理和动力学方面。展开更多
文摘A new effecient catalyst system(FeCl 3/2PPh 3) for the “living”/controlled radical polymerization of butyl methacrylate by a reverse ATRP process was reported in this paper.With the presence of this catalyst system,the number average molecular weights of the obtained polymer increased in direct proportion with monomer conversion,and the MWDs (molecular weight disctributions) were narrow throughout the reactions(1 17< w/ n<1 22).This reaction system did not include the conventional initiators which were used to generate the primary radicals.
