Disiloxane bridged binuclear titanocene catalysts for ethylene polymerization

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	Disiloxane bridged binuclear titanocene catalysts for ethylene polymerization
	Feng, R ; Su, LM ; He, DW ; Wang, BQ ; Tian, GL ; Xu, SS ; Zhou, XZ
刊名	ACTA POLYMERICA SINICA
	1998-06-01
期号	3 页码:360-363
关键词	Binuclear Titanocene Ethylene Homogeneous Polymerization
ISSN号	1000-3304
英文摘要	Two tetramethyldisiloxanediyl bridged binuclear titanocenes Cl2CpTiCp * (CH3)(2)SiOSi(CH3)(2)CpTiCpCl2(Cp = substituted cyclopendienyl, R = H in catalyst A, R = Si(CH3)(3) in catalyst B) have been synthesized by the reacting dilithium salts of Cp(CH3)(2)SiOSi(CH3)(2)Cp with CpTiCl3 in the yields of 42% and 51% respectively. Their catalysis behavior for the polymerization of ethylene under different conditions were investigated, and compared with mononuclear metallocene, cyclopentadienyl-titanium dichloride. The result showed that these two catalysts have a middle activity for ethylene polymerization. The MWD of the polyethylene were rather wide and the highest molecular weight was as high as 5.9 x 10(4) g/mol. Furthermore, catalyst B exhibited unexpected temperature dependence for ethylene polymerization.
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000076400200018
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/74793]
专题	中国科学院化学研究所
通讯作者	Feng, R
作者单位	1.Chinese Acad Sci, Inst Chem, Beijing 100080, Peoples R China 2.Nankai Univ, Dept Chem, Tianjin 300071, Peoples R China
推荐引用方式 GB/T 7714	Feng, R,Su, LM,He, DW,et al. Disiloxane bridged binuclear titanocene catalysts for ethylene polymerization[J]. ACTA POLYMERICA SINICA,1998(3):360-363.
APA	Feng, R.,Su, LM.,He, DW.,Wang, BQ.,Tian, GL.,...&Zhou, XZ.(1998).Disiloxane bridged binuclear titanocene catalysts for ethylene polymerization.ACTA POLYMERICA SINICA(3),360-363.
MLA	Feng, R,et al."Disiloxane bridged binuclear titanocene catalysts for ethylene polymerization".ACTA POLYMERICA SINICA .3(1998):360-363.