A series of ethylene-styrene copolymerizations was carried out in the presence of cyclopentadienyltitanium trichloride and methylalumoxane at 20 degrees C and at different comonomer feed compositions. By sequential extraction a copolymeric material with a styrene units content up to 36 mol-% can be separated from the homopolymeric products. Some considerations about the relative reactivity of the comonomers and the regioregularity of the styrene insertion are made on the basis of the C-13 NMR spectra.
Copolymerization of ethylene and styrene with monocyclopentadienyltitanium trichloride/methylalumoxane catalyst
OLIVA, Leone;LONGO, Pasquale
1996-01-01
Abstract
A series of ethylene-styrene copolymerizations was carried out in the presence of cyclopentadienyltitanium trichloride and methylalumoxane at 20 degrees C and at different comonomer feed compositions. By sequential extraction a copolymeric material with a styrene units content up to 36 mol-% can be separated from the homopolymeric products. Some considerations about the relative reactivity of the comonomers and the regioregularity of the styrene insertion are made on the basis of the C-13 NMR spectra.File in questo prodotto:
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