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Copolymerization of poly(propylene) macromonomer and ethylene with metallocene catalysts
Author(s) -
Shiono Takeshi,
Moriki Yuji,
Soga Kazuo
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.19950970117
Subject(s) - methylaluminoxane , copolymer , metallocene , macromonomer , cyclopentadienyl complex , polymer chemistry , ethylene , zirconium , materials science , catalysis , chemistry , organic chemistry , polymerization , polymer
Copolymerization of ethylene and poly(propylene) macromonomer(PPM) with Mn⇋710 was conducted with the (t‐butylamido)dimethyl(tetramethyl‐η 5 ‐cyclopentadienyl)silanetitanium dichloride(CGC‐Ti), ethylenebis(tetrahydroindenyl)zirconium dichloride(Et[IndH 4 ] 2 ZrCl 2 ), bis(cyclopentadienyl)zirconium dichloride(Cp 2 ZrCl 2 ) and bis(cyclopentadienyl)titanium dichloride(Cp 2 TiCl 2 ) catalysts using methylaluminoxane as cocatalyst. From the detail analysis of resulting copolymers by DSC, IR and 13 C NMR, it was proved that PPM is copolymerized with ethylene to give poly(ethylene‐co‐PPM). The ability of incorporating PPM in the copolymer was found to increase in the following order: Cp 2 ZrCl 2 «Cp 2 TiCl 2 < Et[IndH 4 ] 2 ZrCl 2 «CGC‐Ti.