In a process for the metal-catalyzed preparation of copolymers of carbon monoxide and an olefinically unsaturated compound having from 2 to 20 carbon atoms in an aqueous medium, the copolymerization is carried out in the presence of a water-soluble macromolecular host compound which has a hydrophobic cavity and a hydrophilic shell.

Em um processo para a preparação metal-metal-catalyzed dos copolymers do monóxido de carbono e de um composto olefinically unsaturated tendo 2 a 20 átomos de carbono em um meio aqueous, o copolymerization é realizado na presença de um composto macromolecular water-soluble do anfitrião que tenha uma cavidade hydrophobic e um escudo hydrophilic.