| 摘要 |
Process for the preparation of polymers by copolymerizing a mixture of carbon monoxide with one or more olefinically unsaturated compounds in the presence of a catalyst composition based upon a) a palladium compound, b) an anion of an acid with a pKa of less than 6, and c) a compound of the general formula R1R2M1-R-M2R3R4, wherein M1 and M2 represent similar or different elements chosen from the group made up of arsenic, antimony, phosphorus and nitrogen, wherein R1, R2, R3 and R4 represent similar or different hydrocarbon groups which may optionally be substituted with polar groups and wherein R represents a bivalent bridging group containing at least two carbon atoms in the bridge, characterized in that the copolymerization is effected in a ketone/alcohol mixture comprising more than 50 %vol of one or more aliphatic ketones containing at most 10 carbon atoms, and more than 5 %vol of one or more aliphatic alcohols containing at most 10 carbon atoms. |
