Title of article :
Titanium isodicyclopentadienide hemimetallocenes for ethylene/styrene copolymerization
Author/Authors :
Sébastien Gentil، نويسنده , , Nadine Pirio، نويسنده , , Philippe Meunier، نويسنده , , Fabrice Gallou، نويسنده , , Leo A Paquette، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2004
Abstract :
The syndiotactic polymerization of styrene with exo-[(η5-isodiCp)TiCl3] 1/methylalumoxane (MAO; isodiCp=isodicyclopentadienyl) was studied as well as the ethylene/styrene copolymerization with exo-[{η5:η1(N)-isodiCp(SiMe2Nt-Bu)}TiCl2] 2/MAO. These two catalytic systems are stable during polymerization. The half-sandwich titanocene 1 exhibits good syndiospecificity and average activity. The bridged half-sandwich amino complex 2 was found to incorporate styrene into polymer chains at 70 °C. Activity results decrease with increasing styrene concentrations.
Keywords :
Isodicyclopentadienyl , polystyrene , Poly(ethylene-co-styrene) , Titanium catalysts
Journal title :
European Polymer Journal(EPJ)
Journal title :
European Polymer Journal(EPJ)
