茂钇-铝双金属配合物催化甲基丙烯酸甲酯立规聚合  

Stereospecific Polymerization of Methylmethacrylate with Yttrocene containing Aluminium Bimetallic Complex

作　　者：应来强[1] 滕洪祥[1] 赵钰滢[1] 唐文红[1] 巴晓微[1] 韩双成 金鹰泰[1] 

机构地区：[1]中国科学院长春应用化学研究所,长春130022

出　　处：《应用化学》2000年第1期18-21,共4页Chinese Journal of Applied Chemistry

基　　金：中国科学院中国石油化工总公司高分子化学联合开放实验室资助

摘　　要：采用 (C9H7) 2 Y( μ Et) 2 AlEt2 为单组分催化剂或其与三异丁基铝 [Al(i Bu) 3]组成的催化体系 ,研究了甲基丙烯酸甲酯的聚合规律 .前一配合物单独可使甲基丙烯酸甲酯聚合 ,获得分子量可达 34 0万 ,全同含量达 93%的聚合物 ;后一催化体系可使甲基丙烯酸甲酯聚合 ,获得分子量大于6 0万 ,间同含量达 6 5 %的聚合物 .The stereospecific polymerization of methyl methacrylate has been studied using (C 9H 7) 2Y( μ Et) 2AlEt 2 as a single component catalyst and its combination with ( i Bu) 3Al as a two component catalyst. By using the former catalyst PMMA with molecular weight of 3 4×10 6 and isotactic content of 93% was obtained. The latter catalyst system gave PMMA with molecular weight of about 0 6×10 6 and syndiotactic content of 65%.

关 键 词：甲基丙烯酸甲酯 立规聚合 茂稀土催化剂 

分 类 号：O623.624.1[理学—有机化学] O643.36[理学—化学]