Propene was polymerised at high temperatures (up to 90 °C) using rac-[Me2Si(2-Me-4-(α-naphthyl)-1-Ind)2]ZrCl2/MAO as the catalytic system. The increasing deactivation reaction rate of the catalyst for polymerisations above 60 °C was less for a silica supported catalyst compared with the homogeneous one. The isotacticity of polypropene decreases from 99 to 96%. Also the morphology changes with different temperatures.
Propene Polymerisation with rac-[Me2Si(2-Me-4-(Naphthyl)-1-Ind)2]ZrCl2 as a Highly Active Catalyst: Influence of Monomer Concentration, Polymerisation Temperature and a Heterogenising Support / M. FREDIANI; W. KAMINSKY. - In: MACROMOLECULAR CHEMISTRY AND PHYSICS. - ISSN 1022-1352. - STAMPA. - 204:(2003), pp. 1941-1947. [10.1002/macp.200350062]
Propene Polymerisation with rac-[Me2Si(2-Me-4-(Naphthyl)-1-Ind)2]ZrCl2 as a Highly Active Catalyst: Influence of Monomer Concentration, Polymerisation Temperature and a Heterogenising Support
FREDIANI, MARCO;
2003
Abstract
Propene was polymerised at high temperatures (up to 90 °C) using rac-[Me2Si(2-Me-4-(α-naphthyl)-1-Ind)2]ZrCl2/MAO as the catalytic system. The increasing deactivation reaction rate of the catalyst for polymerisations above 60 °C was less for a silica supported catalyst compared with the homogeneous one. The isotacticity of polypropene decreases from 99 to 96%. Also the morphology changes with different temperatures.
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