Premium
Synthesis of polar vinyl monomer–olefin copolymers by α‐diimine nickel catalyst
Author(s) -
Marques Maria M,
Fernandes Susete,
Correia Sandra G,
Caroço Susana,
Gomes Pedro T,
Dias Alberto R,
Mano João,
Rausch Marvin D,
Chien James C W
Publication year - 2001
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.669
Subject(s) - acrylonitrile , methyl vinyl ketone , copolymer , methylaluminoxane , polymer chemistry , methyl methacrylate , vinyl acetate , polymerization , monomer , materials science , acenaphthene , methyl acrylate , ethylene , catalysis , chemistry , polymer , organic chemistry , metallocene , pyrene
Vinyl acetate, methyl methacrylate, acrylonitrile and methyl vinyl ketone were investigated for co‐ and terpolymerization with ethylene and ethylene–propylene. Precursor [bis( N , N ′‐dimesitylimino)acenaphthene]dibromonickel, activated by methylaluminoxane was used as a catalyst system and trialkylaluminium was employed to block the polar groups for these polymerizations. Polymerization activities of the order of magnitude of 10 6 in the case of vinyl acetate and methyl methacrylate, and 10 5 in the case of acrylonitrile were achieved. Microanalysis and GPC of acrylonitrile copolymers found about 17 units of acrylonitrile per polymer chain. Copolymers with very different properties from the parent homopolymers were obtained in all cases except that of methyl vinyl ketone. © 2001 Society of Chemical Industry