Zirconocene catalyst well spaced inside modified montmorillonite for ethylene polymerization: role of pretreatment and modification of montmorillonite in tailoring polymer properties

doi:10.1016/j.jcat.2003.08.013

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	Zirconocene catalyst well spaced inside modified montmorillonite for ethylene polymerization: role of pretreatment and modification of montmorillonite in tailoring polymer properties
	Liu, CB; Tang, T; Huang, BT
刊名	JOURNAL OF CATALYSIS
	2004
卷号	221 期号:1 页码:162-169
关键词	Montmorillonite Zirconocene Polyethylene Molecular Weight Molecular Weight Distribution Chemical Composition
ISSN号	0021-9517
DOI	10.1016/j.jcat.2003.08.013
英文摘要	Zirconocene catalyst was heterogenized inside an organosilane-modified montmorillonite (MMT) pretreated by calcination and acidization, for supported catalyst systems with well-spaced alpha-olefin polymerization active centers. The varied pretreatment and modification conditions of montmorillonite are efficient for supported zirconocene catalysts in control of polyethylene microstructures, in particular, molecular weight distribution. In contrast to other supported catalyst systems, Cp2ZrCl2/modified montmorillonite(MMT-7)-supported catalysts with a distinct interlayer structure catalyzed ethylene homopolymerization and copolymerization with I-octene activated by methylaluminoxane (MAO), resulting in polymers with a bimodal molecular weight distribution (MWD). (C) 2003 Elsevier Inc, All rights reserved.
语种	英语
出版者	ACADEMIC PRESS INC ELSEVIER SCIENCE
WOS记录号	WOS:000187560700018
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/55705]
专题	中国科学院化学研究所
通讯作者	Tang, T
作者单位	Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
推荐引用方式 GB/T 7714	Liu, CB,Tang, T,Huang, BT. Zirconocene catalyst well spaced inside modified montmorillonite for ethylene polymerization: role of pretreatment and modification of montmorillonite in tailoring polymer properties[J]. JOURNAL OF CATALYSIS,2004,221(1):162-169.
APA	Liu, CB,Tang, T,&Huang, BT.(2004).Zirconocene catalyst well spaced inside modified montmorillonite for ethylene polymerization: role of pretreatment and modification of montmorillonite in tailoring polymer properties.JOURNAL OF CATALYSIS,221(1),162-169.
MLA	Liu, CB,et al."Zirconocene catalyst well spaced inside modified montmorillonite for ethylene polymerization: role of pretreatment and modification of montmorillonite in tailoring polymer properties".JOURNAL OF CATALYSIS 221.1(2004):162-169.