双核单茂钛催化苯乙烯间规聚合反应被引量：1

Dinuclear Titanocene for Syndiotactic Polystyrene

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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.

作者陈劼党凯裴昌文杨玉林伍晓林姜兆华

机构地区哈尔滨工业大学材料科学与工程学院博士后流动站大庆油田有限责任公司锅炉压力容器检验研究中心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大庆油田有限责任公司勘探开发研究院

出处《分子催化》 EI CAS CSCD 北大核心 2007年第5期469-471,共3页 Journal of Molecular Catalysis(China)

关键词双核催化剂聚苯乙烯五甲基单茂钛间规聚合 Dinuclear catalyst Polystyrene Pentamethylpentadienyl titanium trichloride Syndiotatic polymerization

分类号 O643.32 [理学—物理化学]

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