文献类型：期刊文献

英文题名：Controlled radical polymerization of styrene in the presence of different copper complexes and organic halides

作者：Cheng, GL; Hu, CP; Ying, SK

机构：[1]E China Univ Sci & Technol, Lab Living Polymerizat, Shanghai 200237, Peoples R China

年份：1999

卷号：15

期号：4

起止页码：358

外文期刊名：CHEMICAL RESEARCH IN CHINESE UNIVERSITIES

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000084039400012)】；

语种：英文

外文关键词：ATRP; 'living'/controlled radical polymerization; 1,10-phenanthroline; 4,7-diphenyl-1,10-phenanthroline; cuprous halides; styrene

摘要：The polymerization behaviors of Styrene (Sr) in the presence of CuX/L [X=Cl or Br; L = 2, 2'-bipyridine (bpy), 1,10-phenanthroline (phen) or 4,7-diphenyl-1,10-phenanthroline (DPP)] and R-X (R = trichloromethyl, benzyl or allyl; X = Cl or Br) have been studied and examined. In a CuCl/bpy/RCl/St system, a bimodal GPC peak at the early stage of polymerization was observed, and a concept of multi-active species was proposed to explain this phenomenon. In a CuCl/phen (DPP)/RCl/St system, the M-n of polystyrene (PS) increased linearly with St conversion and In [M](o)/[M] also increased linearly with time, indicating the 'living' nature of this system. Furthermore, the stability of the propagating active species in a CuBr/phen/RBr/St system is higher than that in the CuBr/phen/RBr/St system.