Process for the production of stereoregular polymers and elastomers of alpha-olefins and certain novel catalysts therefor

Process for the production of stereoregular polymers and elastomers of alpha-olefins and certain novel catalysts therefor

A process for the polymerization of one or more alpha-olefins having at least 3 carbon atoms, which comprises contacting the monomer or monomers in a polar or non-polar solvent under polymerization conditions with a homogeneous catalyst system including (a) a cationic form of a racemic mixture of a...

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Hauptverfasser: Volkis, Victoria, Eisen, Moris, Shmulinson, Michal, Averbuj, Claudia, Tish, Edith
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creator Volkis, Victoria
Eisen, Moris
Shmulinson, Michal
Averbuj, Claudia
Tish, Edith
description A process for the polymerization of one or more alpha-olefins having at least 3 carbon atoms, which comprises contacting the monomer or monomers in a polar or non-polar solvent under polymerization conditions with a homogeneous catalyst system including (a) a cationic form of a racemic mixture of a chiral octahedral transition metal complex or of a non chiral octahedral transition metal complex, comprising 1, 2 or 3 bidentate chelating ligands and no cyclopentadienyl ligands and having C 1 , C 2 , or C 3 symmetry; and (b) an anion of a Lewis acid or a Brönsted acid; and adjusting the pressure so as to obtain either a highly stereoregular polymer or copolymer or an elastomer.
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title Process for the production of stereoregular polymers and elastomers of alpha-olefins and certain novel catalysts therefor
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