Spherical MgCl2 supported iron catalyst for ethylene polymerization:: Effect of the preparation procedure on catalyst activity and the morphology of polyethylene particles

被引：48

作者：

Huang, RB

Liu, DB

Wang, SB

Mao, BQ ^{[1
]}

机构：

[1] China Petr & Chem Corp, BRICI, Polyolefin Natl Engn & Res Ctr, Beijing 100013, Peoples R China

[2] Beijing Univ Chem Technol, Coll Sci, Beijing 100029, Peoples R China

来源：

MACROMOLECULAR CHEMISTRY AND PHYSICS | 2004年 / 205卷 / 07期

关键词：

catalysts; iron; morphology; polyethylene (PE); supports;

D O I：

10.1002/macp.200300213

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A new procedure was developed to support [(ArN=C(Me))(2)C5H3N]FeCl2 (Ar=2,4,6-trimethylphenyl) on spherical MgCl2 for ethylene polymerization. The resultant catalysts showed ten times higher activity of the corresponding catalyst in homogeneous catalysis. The morphologies of polyethylene particles strongly depended on supported catalyst preparation procedure and polymerization conditions. In addition, the GPC measurements showed bimodal polyethylene for the homogeneous polymerization while mono-modal polyethylene of those supported catalysts.

引用

页码：966 / 972

页数：7

共 27 条

[21]

Simon LC, 1999, J POLYM SCI POL CHEM, V37, P4656, DOI 10.1002/(SICI)1099-0518(19991215)37:24<4656::AID-POLA24>3.0.CO

[22]

2-G

[23]

Sinn H., 1983, U.S. Patent, Patent No. [4404344, 4,404,344]

[24]

SINN H, 1980, ADV ORGANOMET CHEM, V18, P99

[25] Highly active iron and cobalt catalysts for the polymerization of ethylene [J].

Small, BL ;

Brookhart, M ;

Bennett, AMA .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1998, 120 (16) :4049-4050

[26]

Wang Q, 2002, MACROMOL RAPID COMM, V23, P639, DOI 10.1002/1521-3927(20020701)23:10/11<639::AID-MARC639>3.0.CO

[27]

2-A

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