Organic-inorganic hybrid supported zirconocene catalysts for ethylene polymerization

被引：10
|
作者：
Guo, Y
Zhang, XQ [1 ]
Dong, WM
机构：
[1] Chinese Acad Sci, Changchun Inst Appl Chem, Changchun 130022, Peoples R China
[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
来源：
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2005年 / 237卷 / 1-2期
关键词：
organic-inorganic hybrid; zirconocene; ethylene polymerization;
D O I：
10.1016/j.molcata.2005.03.025
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Silica-poly[3-(trimethoxysilyl)propyl methacrylate-co-4-vinylpyridine] inorganic-organic hybrid (SMV) has been synthesized, and by loading zirconocene catalyst on the carrier, novel zirconocene supported catalyst has been made and tested for ethylene polymerization. The silica monomer (SM) is prepared by coupling reaction of hydroxyl group of silica surface with 3-(trimethoxysilyl)propyl methacrylate (MPS) and then, SMV is synthesized by copolymerization of SM with 4-vinylpyridine. The formation of SM and SMV has been confirmed by FTIR, solid-state C-13 NMR, XPS, and elemental analysis (EA). Loading Cp2ZrCl2 on SMV resulted in the zirconocene supported catalyst. Ethylene polymerization data demonstrate that the SMV supported catalyst has higher activity than the SM supported one and yields polyethylene with much higher molecular weight than that produced by the corresponding homogeneous zirconocene catalyst. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：45 / 49
页数：5
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