Polymerization of carbon monoxide and ethylenically unsaturated carboxylic acid

摘要

Polyanhydrides are produced by reaction of unsaturated carboxylic acid of defined structure, with carbon monoxide in the presence of a catalyst composition formed from a palladium salt, a monodentate phosphorus ligand optionally mixed with bidentate phosphorus ligand, and an oxygen-containing acid having a pKa below 2.