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Vinyl‐type polymerization of norbornene by a nickel‐based catalyst with phosphoraneiminato ligands
Author(s) -
Mast Christian,
Krieger Matthias,
Dehnicke Kurt,
Greiner Andreas
Publication year - 1999
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/(sici)1521-3927(19990401)20:4<232::aid-marc232>3.0.co;2-a
Subject(s) - methylaluminoxane , norbornene , chlorobenzene , polymer chemistry , catalysis , polymerization , nickel , polymer , crystallinity , materials science , copolymer , yield (engineering) , chemistry , organic chemistry , metallocene , composite material
Abstract High molecular weight vinyl‐type polynorbornene was obtained in high yields with a highly active nickel‐based phosphoraneiminato complex in the presence of methylaluminoxane. This polynorbornene is soluble at room temperature in chlorobenzene and shows no indication of crystallinity in the solid state. Catalyst activity, polymer yield, and polymer molecular weight can be controlled over a wide range by variation of reaction parameters.