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Unprecedented Living Olefin Polymerization Derived from an Attractive Interaction between a Ligand and a Growing Polymer Chain
Author(s) -
Mitani Makoto,
Nakano Takashi,
Fujita Terunori
Publication year - 2003
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.200304661
Subject(s) - polymerization , living polymerization , polyethylene , polymer , copolymer , polymer chemistry , ethylene , coordination polymerization , olefin fiber , ionic polymerization , materials science , ligand (biochemistry) , catalysis , chemistry , organic chemistry , anionic addition polymerization , radical polymerization , biochemistry , receptor
Ti complexes incorporating fluorine‐containing phenoxy–imine chelate ligands (fluorinated Ti‐FI catalysts) have been demonstrated to induce an unprecedented living polymerization effect with both ethylene and propylene, through an attractive interaction between the fluorine atom in the ligand and a β ‐hydrogen atom on the growing polymer chain. With the aid of this attractive interaction, highly controlled living ethylene polymerization, highly‐syndiospecific living propylene polymerization, the synthesis of unique block copolymers from ethylene and propylene, and the catalytic production of monodisperse polyethylene and Zn‐terminated polyethylene have been realized. The attractive interaction provides a conceptually new strategy for the achievement of controlled living olefin polymerization.