Catalyst composition and method for hydrogenating a polymer having a conjugated diene

摘要

A catalyst composition and a method for hydrogenating a polymer having a conjugated diene are provided. The method includes a step of hydrogenation of dissolving the polymer in one of an inert organic solvent and an inert organic solvent which includes a portion of ether and amine polar compound to be reacted with a hydrogen in a presence of a hydrogenation catalyst composition so as to selectively hydrogenate an unsaturated double bond in the polymer. The catalyst composition includes (a) a first composition having one of a bis(cyclopendienyl, fluorenyl, indenyl and derivatives thereof) titanium compound and a mixture thereof; (b) a second composition having one selected from the group consisting of a first compound of a formula (II), a second compound of a formula (III) and a mixture thereof: wherein the formula (II) has a chain structure, the formula (III) has a cyclic structure, the R is C₁~C₁₂ alkyl, the X¹ and X² are ones selected from the group consisting of C₁~C₁₂ alkyl, C₁~C₁₂ cycloalkoxy, aryl, C₁~C₁₂ alkyl aryl and carbonyl, and n>1 and m>2; and (c) a third composition having an organic metallic compound.