Four types of binary blendsType A, Type B, Type C, and Type Dwere prepared by melt mixing them in a single screw extruder, with an emphasis on the compatibilizing effect of in situ formed block copolymers between MAH-g-PP and nylon 6. The effects were examined in terms of morphological, rheological, thermal, dynamic mechanical, and mechanical properties for four types of binary blends using various methods.