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A Novel Highly Active Iron/2,6‐Bis(imino)pyridyl Catalyst for Ethylene Polymerization
Author(s) -
Ma Zhi,
Wang Hang,
Qiu Jiaoming,
Xu Demin,
Hu Youliang
Publication year - 2001
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/1521-3927(20011001)22:15<1280::aid-marc1280>3.0.co;2-9
Subject(s) - methylaluminoxane , catalysis , ethylene , polymerization , polymer chemistry , polymer , coordination polymerization , chloride , molar mass distribution , molar ratio , chemistry , materials science , solution polymerization , organic chemistry , metallocene
A novel highly active catalyst 2,6‐bis[1‐(2‐methylnaphthylimino)ethyl]pyridineiron(II) chloride ( 1 ) is reported for ethylene polymerization. Compared with 2,6‐bis[(1‐naphthylimino)ethyl]pyridineiron(II) chloride ( 2 ) reported recently, catalytic activities of this new complex are high with maximum activity 6.51×10 6 g PE·mol –1 ·Fe·h –1 ·bar –1 at 40°C. The activity of the catalyst, and the molecular weight and melting temperature of the polymers depend on the methylaluminoxane/ 1 molar ratio and polymerization temperature.