Polymerization of Methyl Methacrylate by Diisopropylamido bis(methylcyclopentadienyl) ytterbium Complex

作     者：Mao, LS Xue, MQ Shen, Q 

作者机构：SUZHOU UNIVDEPT CHEMSUZHOU 215006PEOPLES R CHINA 

出 版 物：《Chinese Chemical Letters》 (中国化学快报（英文版）)

年 卷 期：1997年第8卷第7期

页      面：637-638页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070305[理学-高分子化学与物理] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 

主　　题：THF Polymerization of Methyl Methacrylate by Diisopropylamido bis methylcyclopentadienyl ytterbium Complex 

摘      要：It was first found that diisopropylamido bis(methylcyclopentadienyl) ytterbium complex (MeCp)(2)YbN(i-Pr)(2)(THF) exhibits extremely high catalytic activity in the polymerization of methyl methacrylate. The reactions can be carried out over a quite broad range of polymerization temperatures from -78 degrees C to 40 degrees C. The results of GPC (gel permeation chromatography) indicate that the molecular weight distribution (Mw/Mn) becomes broad with the increase of temperature.