Dielectric,ultrasonic and x-ray diffraction studies on poly(vinyl chloride)-chlororubber-20 blends

Poly(vinyl chloride)-chlororubber-20 blends have been studied for compatibility by dielectric, ultrasonic and X-ray diffraction techniques. It has been found by both ultrasonic and dielectric techniques that poly(vinyl chloride) forms compatible blends with chlororubber-20 over a wide range of composition. X-ray diffraction studies indicate polymer-polymer interaction and reduction in the crystallinity of poly(vinyl chloride) by the incorporation of chlororubber-20. These results agree with earlier observations and have been explained in terms of the molecular and morphological behaviour of the blends.