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New Phenylnickel‐(2‐phosphinobenzenesulfonate) Triphenylphosphine Complexes as Highly Active Ethylene Polymerization Catalysts
Author(s) -
Nowack Rüdiger J.,
Hearley Andrew K.,
Rieger Bernhard
Publication year - 2005
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.200500134
Subject(s) - phosphine , ethylene , triphenylphosphine , catalysis , monomer , polymerization , polymer chemistry , chemistry , nickel , sulfonate , chelation , organic chemistry , polymer , sodium
The first examples of SHOP type nickel(II) catalysts bearing new phosphine chelate ligands comprised of a coordinating sulfonate functional group have been synthesized and structurally characterized. These catalysts show high activities in the polymerization of ethylene and can even be used without phosphine scavengers. Polyethylenes with 15–25 branches per 1000 carbon atoms are produced from ethylene monomer alone.