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Rare earth metal initiated polymerization to give high polymers with narrow molecular weight distribution
Author(s) -
Yasuda Hajime,
Ihara Eiji,
Morimoto Masakazu,
Nodono Mitsufumi,
Yoshioka Shiro,
Furo Masahito
Publication year - 1995
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.19950950118
Subject(s) - polymerization , polymer chemistry , molar mass distribution , lanthanide , alkyl , acrylate , polymer , materials science , monomer , butyl acrylate , chemistry , olefin fiber , coordination polymerization , radical polymerization , organic chemistry , ion
Organolanthanide (III) initiated polymerization of alkyl acrylates gave high molecular weight poly(alkyl acrylate)s with extremely narrow molecular weight distribution in high yield. Molecular weight of the polymers increased linearly with the conversion. Random and block copolymerizations of acrylate monomers (alkyl acrylates and MMA) were successful. For development of olefin polymerization catalystsbased on lanthanide complexes, bulky substituents were introduced into Me 2 Si bridged Cp rings and they were used as ligands of lanthanide complexes. Tri‐ and divalent lanthanide complexes with such a ligand system showed high activity for olefin polymerization and gave high molecular weight polyolefins.