Syndiospecific living propylene polymerization catalyzed by titanium complexes having fluorine-containing phenoxy-imine chelate ligands

…, H Terao, T Nakano, H Tanaka, T Fujita

Index: Matsui; Mitani; Saito; Tohi; Makio; Matsukawa; Takagi; Tsuru; Nitabaru; Nakano; Tanaka; Kashiwa; Fujita Journal of the American Chemical Society, 2001 , vol. 123, # 28 p. 6847 - 6856

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Citation Number: 256

Abstract

The propylene polymerization behavior of a series of Ti complexes featuring fluorine- containing phenoxy-imine chelate ligands is reported. The Ti complexes combined with methylalumoxane (MAO) can be catalysts for living and, at the same time, stereospecific polymerization of propylene at room temperature or above. DFT calculations suggest that the attractive interaction between a fluorine ortho to the imine nitrogen and a β-hydrogen ...