Process for the preparation of polymers.

摘要

Process for the preparation of polymers characterized in that a mixture of carbon monoxide with one or more olefinically unsaturated organic compounds is polymerized by contacting the mixture with a catalyst composition based upon a) a palladium compound, b) an anion of an acid with a pKa of less than 2, provided that the acid is not a hydrohalogenic acid, and c) a bidentate ligand of the general formula R<1>R<2>-M-R-M-R<3>R<4>, wherein M represents phosphorus, arsenic or antimony, R<1>, R<2>, R<3> and R<4> represent hydrocarbyl groups which may or may not be substituted with polar groups and R represents a bivalent organic bridging group which contains at least two carbon atoms in the bridge in the absence of a liquid non-polymerizable diluent.