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Spherical MgCl 2 Supported Iron Catalyst for Ethylene Polymerization: Effect of the Preparation Procedure on Catalyst Activity and the Morphology of Polyethylene Particles
Author(s) -
Huang Rubin,
Liu Dongbing,
Wang Shibo,
Mao Bingquan
Publication year - 2004
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.200300213
Subject(s) - polyethylene , catalysis , polymerization , polymer chemistry , materials science , ethylene , aluminium , chemical engineering , chemistry , composite material , polymer , organic chemistry , engineering
Summary: A new procedure was developed to support [(ArNC(Me)) 2 C 5 H 3 N]FeCl 2 (Ar2,4,6‐trimethylphenyl) on spherical MgCl 2 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.EDX Line Scan analysis of the catalyst SMSIC‐1 regarding the aluminium and iron distribution in the volume (25 kV accelerating voltage, magnification 1 500).