Study on ethylene polymerization by homogeneous Cp2ZrCl2/methylaluminoxane catalyst system

被引：4

作者：

do Couto, PA

Nele, M

Coutinho, FMB

机构：

[1] Univ Fed Rio de Janeiro, Inst Macromol, BR-21945970 Rio De Janeiro, Brazil

[2] Univ Fed Rio de Janeiro, COPPE, Programa Engn Quim, BR-21945 Rio De Janeiro, Brazil

[3] Univ Estado Rio de Janeiro, Inst Quim, Dept Proc Ind, Rio De Janeiro, Brazil

来源：

EUROPEAN POLYMER JOURNAL | 2002年 / 38卷 / 07期

关键词：

D O I：

10.1016/S0014-3057(02)00014-9

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Ethylene polymerization was carried out using Cp2ZrCl2 and methylaluminoxane (MAO) as cocatalyst. In this work temperature and [MAO]/[Cp2ZrCl2]([Al]/[Zr]) molar ratio were varied, The highest value of catalyst activity was obtained at 60 degreesC when [Al]/[Zr] molar ratio = 500 was employed. A small increase in catalyst activity was only observed at 60 degreesC when the [Al]/[Zr] molar ratio was increased to 2000. The produced polyethylenes were characterized by differential scanning calorimetry (DSC) and SEC analysis. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：1471 / 1476

页数：6

共 8 条

[1] Effect of aluminoxane on semi-batch polymerization of ethylene using zirconocene dichloride [J].