茂钛对乙烯基单体催化聚合(Ⅳ)——二氯二茂钛催化丙烯腈与甲基丙烯酸甲酯共聚合反应的研究  

Vinyl Polymerization with Titanocenes(Ⅳ)--Studies on the Copolymerization of Acrylonitrile and Methyl Methacrylate in the Presence of Titanocene Dichloride

作　　者：叶大铿[1] 李贵华 刘德海 刘道玉[1] Ye Dakeng;Li Guihua;Liu Dehai;Liu Daoyu(Department of Chemistry,Wuhan University,Wuhan)

机构地区：[1]武汉大学化学系

出　　处：《高等学校化学学报》1985年第4期371-375,共5页Chemical Journal of Chinese Universities

摘　　要：本文研究了光照对二氯二茂钛催化丙烯腈与甲基丙烯酸甲酯共聚合反应的影响.以NMR谱法测定了共聚物中两种单体的组成比.用四种方法计算了竞聚率r1和r2.证明了在光照下二氯二茂钛对单体催化聚合过程为一种自由基机理.The influence of irradiation of light on the copolymerization of acrylonitrile (M_(1)) and methyl methacrylate (M_(2)) in the presence of titanocene dichloride was investigated.Irradiation of light is a prerequisite for this process. Mole fractions of M_(1 )and M_(2) units in the copolymers were determined by the ^(1)H NMR spectra. The monomer reactivity ratios were evaluated by four methods. According to experimental results, a free radical mechanism was proposed further.

关 键 词：共聚合反应 甲基丙烯酸甲酯 二氯二茂钛 催化聚合 乙烯基单体 丙烯腈 竞聚率 自由基机理 

分 类 号：TQ3[化学工程]