Stereoblock polypropylene/isotactic polypropylene blends. III. Isothermal crystallization kinetics of iPP component

The isothermal crystallization of blends of stereoblock polypropylene and isotactic polypropylene were analyzed. The main interest in this phenomenon is related to the steric affinity between the two components. The composition of the blend was changed over a wide range. The obtained results demonstrate the incompatibility of the two components both in the liquid phase and the solid state. © 1995 John Wiley & Sons, Inc.