Some aspects of vapor‐induced crystallization of polycarbonate of bisphenol A

A method is presented to crystallize polycarbonate of bisphenol A under constant vapor pressure of solvents at near ambient temperatures. Methylene chloride and acetone were used as crystallizing liquids. Acetone is more powerful in inducing crystallization but the final degree of crystallinity does not depend on the nature of the solvent. The crystalline degree is low as found in the literature for this polymer. This method is very useful to crystallize materials reluctant to thermally induced crystallization such as polycarbonate.