A process for the preparation of poly (ester-carbonate)s

摘要

The invention relates to a process for the preparation of poly (ester-carbonate)s from the corresponding oligomers, using solid state polymerization process, which comprises mixing the desired oligomers in a suitable solvent or non-solvent, adding a suitable catalyst to this mixture, refluxing the mixture for a period of 1 to 8 hours , removing the solvent by known methods, polymerization the oligomer mixture in the solid state either in presence of vaccum or under a flow of inert gas at a temperature ranging between 180-240°C for a period of 5 to 20 hours to obtain the product.