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Novel Azaferrocenyliminonickel Catalysts for Olefin Polymerization
Author(s) -
Watanabe Makoto
Publication year - 2005
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/marc.200400447
Subject(s) - polymerization , polymer chemistry , aryl , ethylene , catalysis , chemistry , olefin fiber , coordination polymerization , materials science , solution polymerization , polymer , organic chemistry , alkyl
Summary: The azaferrocenyliminonickel dibromide complexes 1 bearing a pentaphenylcyclopentadienyl group and a wide range of N ‐aryl groups were synthesized and examined as catalysts for ethylene polymerization. Both the ortho ‐ (R 1 ) and para ‐substituents (R 2 ) of the N ‐aryl groups in 1 were found to strongly influence both the polymerization activity and the properties of the obtained polyethylenes. The effect of changing the polymerization conditions, such as temperature, ethylene pressure, and cocatalyst, was also examined.Azaferrocenyliminonickel( II ) complexes.