双核单茂钛催化苯乙烯间规聚合反应  

Dinuclear Titanocene for Syndiotactic Polystyrene

作　　者：陈劼[1] 党凯[2] 裴昌文[3] 杨玉林[1] 伍晓林[4] 姜兆华[1] 

机构地区：[1]哈尔滨工业大学材料科学与工程学院博士后流动站,黑龙江哈尔滨150001 [2]大庆油田有限责任公司锅炉压力容器检验研究中心,黑龙江大庆163712 [3]大庆油田有限责任公司大庆油田工程有限公司黑龙江大庆,163712 [4]大庆油田有限责任公司勘探开发研究院,黑龙江大庆163712

出　　处：《分子催化》2007年第5期469-471,共3页Journal of Molecular Catalysis(China)

摘　　要：A new type of dinuclear titanocene was prepared by the reaction of bis(N,N-diethoxyl-aniline)-methane with pentamethylpentadienyl titanium trichloride in the presence of excessive triethylamine.The dinuclear titanocene displays catalytic activities towards the syndiospecific polymerization of styrene in the presence of modified methylaluminoxane(MMAO) as a cocatalyst,and produces higher molecular weight and syndiotacticity polystyrenes having bimodal molecular weight distribution than their mother complex Cp*TiCl3.Also,the study of polymerization behavior of dinuclear titanocene was carried out under the different polymerization temperature and Al/Ti molar ratio.A new type of dinuclear titanocene was prepared by the reaction of bis（ N, N-diethoxyl-aniline）- methane with pentamethylpentadienyl titanium trichloride in the presence of excessive triethylamine. The dinuclear titanocene displays catalytic activities towards the syndiospecific polymerization of styrene in the presence of modified methylaluminoxane （MMAO） as a coeatalyst, and produces higher molecular weight and syndiotacticity polystyrenes having bimodal molecular weight distribution than their mother complex Cp ＊ TiCl3. Also, the study of polymerization behavior of dinuclear titanocene was carried out under the different polymerization temperature and Al/Ti molar ratio.

关 键 词：双核催化剂 聚苯乙烯 五甲基单茂钛 间规聚合 

分 类 号：O643.32[理学—物理化学]