Heterogeneous catalyst for preparing alternating olefin/carbon monoxide copolymers

摘要

A catalyst active in the preparation of alternating olefin/carbon monoxide (CO) copolymers is constituted by: (a) Pd(O2CNEt2)2(NHEt2)2 supported on a solid carrier preferably constituted by hydroxylated silica, (b) an either mono- or bidentate ligand containing one or two nitrogen or phosphorous atoms capable of linking to Pd atom by dative bonds, (c) NOBF4. Disclosed are the preparation of the catalyst and the use of said catalyst in alternated copolymerization of ethylene (C2) and/or other olefins with carbon monoxide (CO).