Ethene-propene copolymns. were performed in the presence of Cs sym. group 4 metallocenes. The reactivity ratios were strongly influenced by both the transition metal and the ancillary ligands. Substantially alternate, almost random, and blocky copolymers were obtained with titanocene, zirconocene, and hafnocene, resp., with the bis(dimethylsilyl)-1,1'-2,2'-diyl-(3',5'-diisopropyl)(4-iso-Pr )-(cyclopentadienyl) ligand, and a blocky copolymer was obtained with (di-Ph methylidene)(cyclopentadienyl)(9-fluorenyl)TiCl2.

Copolymerization of ethene and propene in the presence of Cs symmetric group 4 metallocenes and methylaluminoxane

LONGO, Pasquale;PRAGLIOLA, Stefania;MONACO, Guglielmo
2002

Abstract

Ethene-propene copolymns. were performed in the presence of Cs sym. group 4 metallocenes. The reactivity ratios were strongly influenced by both the transition metal and the ancillary ligands. Substantially alternate, almost random, and blocky copolymers were obtained with titanocene, zirconocene, and hafnocene, resp., with the bis(dimethylsilyl)-1,1'-2,2'-diyl-(3',5'-diisopropyl)(4-iso-Pr )-(cyclopentadienyl) ligand, and a blocky copolymer was obtained with (di-Ph methylidene)(cyclopentadienyl)(9-fluorenyl)TiCl2.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11386/3881056
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