The Polymerization of Methyl Methacrylate in the Presence of a New Homogeneous Yttrium Catalyst

被引：0
|
作者：
LIU Jian-fei
机构：
来源：
Chemical Research in Chinese Universities | 1993年 / 02期
关键词：
Yttrium; Butyl lithium; Methyl methacrylate; Polymerization;
D O I：
暂无
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学科分类号：
摘要：
Methyl methacrylate(MMA) polymerized in the presence of a new homogeneous catalyst of Y(acac)3-(i-Bu)3Al-BuLi. The effects of MMA/Y, Al/Y, Li/Y molar ratios, polymerization temperature and time are reported. The results show that a small amount of butyl lithium could greatly enhance the activity of the catalyst and the polymerization reaction could be carried out at low temperatures (-25℃-10℃) with a high conversion. 200 kg of poly(methyl methacrylate) (PMMA) with 63% syndiotacticity could be prepared by using 1 mole of yttrium.
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页码：148 / 151
页数：4
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