SynopsisThe possible uses of atactic polypropylene as the basis of grafting for the preparation of graft polymers of vinyl chloride are studied. Graft parameters and glass transition temperatures of the graft products obtained are specified at different compositions of the graft products. After blending the graft products with pure poly(viny1 chloride) or ABS/poly(vinyl chloride) blends, some application-related properties are discussed with respect to the grafting degree and the amount of graft product contained.