title: Nickel Catalyzed Copolymerization of Ethylene and Alkyl Acrylates.
abstract: Ni(II) complexes bearing an o-bis(aryl)phosphinophenolate ligand were synthesized as catalysts for copolymerization of ethylene and alkyl acrylates. When the P-bound aryl group was 2,6-dimethoxyphenyl group, one of the oxygen atoms in the methoxy groups coordinated to the nickel center on its apical position. This complex was a highly active catalyst without any activators to give highly linear and high molecular weight copolymers. The structures of the copolymers were determined by1H and13C NMR to clarify that the alkyl acrylate comonomers were incorporated in the main chain and that the structures of the copolymers were significantly influenced by the structure of the aryl group in the ligand.
authors.affiliation: Mitsubishi Chemical Group Science and Technology Research Center, Inc. , 1000 Kamoshida-cho, Aoba-ku, Yokohama 227-8502, Japan.
authors.forename: Bruce S
authors.initials: BS
authors.lastname: Xin
authors.affiliation: Mitsubishi Chemical Group Science and Technology Research Center, Inc. , 1000 Kamoshida-cho, Aoba-ku, Yokohama 227-8502, Japan.
authors.forename: Naomasa
authors.identifier: 0000-0001-5179-7441
authors.initials: N
authors.lastname: Sato
authors.affiliation: Mitsubishi Chemical Group Science and Technology Research Center, Inc. , 1000 Kamoshida-cho, Aoba-ku, Yokohama 227-8502, Japan.
authors.forename: Akio
authors.identifier: 0000-0002-7134-7605
authors.initials: A
authors.lastname: Tanna
authors.affiliation: Mitsubishi Chemical Group Science and Technology Research Center, Inc. , 1000 Kamoshida-cho, Aoba-ku, Yokohama 227-8502, Japan.
authors.forename: Yasuo
authors.identifier: 0000-0001-7140-9661
authors.initials: Y
authors.lastname: Oishi
authors.affiliation: Mitsubishi Chemical Group Science and Technology Research Center, Inc. , 1000 Kamoshida-cho, Aoba-ku, Yokohama 227-8502, Japan.
authors.forename: Yohei
authors.identifier: 0000-0002-7752-5193
authors.initials: Y
authors.lastname: Konishi
authors.affiliation: Mitsubishi Chemical Group Science and Technology Research Center, Inc. , 1000 Kamoshida-cho, Aoba-ku, Yokohama 227-8502, Japan.
authors.forename: Fumihiko
authors.identifier: 0000-0002-2223-7418
authors.initials: F
authors.lastname: Shimizu