文献类型：期刊文献

英文题名：Controlled radical polymerization of methyl methacrylate in the presence of CuX/phen complexes and alkyl halides

作者：Cheng, Guang Lou[1]; Hu, Chun Pu[1]; Ying, Sheng Kang[1]

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

年份：1999

卷号：40

期号：8

起止页码：2167

外文期刊名：POLYMER

收录：;EI(收录号：1999160017109);WOS:【SCI-EXPANDED(收录号:WOS:000078143100030)】；

语种：英文

外文关键词：controlled radical polymerization; methyl methacrylate; copper complexes

摘要：The polymerization behaviour of methyl methacrylate (MMA) in p-xylene in the presence of CuCl/L [L = 1,10-phenanthroline (phen) or 4,7-diphenyl-1,10-phenanthroline (DPP)] and tetrachlorocarbon has been studied. For the CCl4/CuCl/phen/MMA/p-xylene system. the linear relationship between the number-average molecular weight of the resulting poly(methyl methacrylate) (PMMA) and MMA conversion, as well as between In[M](0)/[M] and time, demonstrate the 'living' nature of this system. When phen is replaced by DPP the polymerization becomes slower, but the molecular weight and molecular weight distribution are better controlled. The stereochemistry of PMMA synthesized in the CCl4/CuCl/DPP/MMA/p-xylene system indicates that the MMA monomer adds to the living polymer chain end in an atactic fashion. (C) 1999 Elsevier Science Ltd. All rights reserved.