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Ethylene Homo‐ and Copolymerization Activity of a Series of [ONNO]‐Type Amine Bis(phenolate) Based Vanadium( II – V ) Catalysts
Author(s) -
Lorber Christian,
Wolff Fabien,
Choukroun Robert,
Vendier Laure
Publication year - 2005
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200500149
Subject(s) - vanadium , ethylene , chemistry , norbornene , polymer chemistry , 1 hexene , catalysis , amine gas treating , monomer , polymerization , copolymer , inorganic chemistry , organic chemistry , polymer
Abstract The synthesis and structural characterization of new paramagnetic amine bis(phenolate) [ONNO]‐vanadium( III ) and‐vanadium( II ) complexes, V III (acac)[ONNO], V III (Cl)(THF)[ONNO], and V II (TMEDA)[ONNO], is described. These compounds complete the family of [ONNO]‐vanadium( IV / V ) complexes previously reported. The members of the [ONNO]‐vanadium family at various oxidation states that range from vanadium( II ) to vanadium( V ), in association with EtAlCl 2 cocatalyst, were studied in the polymerization of ethylene and in the copolymerizations of ethylene‐1‐hexene and ethylene‐norbornene. Poly(ethylene‐ co ‐1‐hexene) and poly(ethylene‐ co ‐norbornene) were produced with co‐monomer content of up to 11 mol‐% and 29 mol‐% for 1‐hexene and norbornene, respectively. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005)