Copolymer of polypropylene and organopolysiloxane and method for preparation thereof

摘要

There is disclosed a method for the preparation of a copolymer of polypropylene and organopolysiloxane. This method comprises heating a solution of an alpha , omega -diene-propylene polymer and an organohydrido polysiloxane having on average at least two SiH groups in one molecule at a temperature below the boiling point of the solvent. Preferably, this alpha , omega -diene-propylene polymer is obtained by subjecting polypropylene to thermal decomposition in an inert atmosphere at a pressure below atmospheric pressure.