a method for blending multiple immiscible polymers resulting in a fine morphology with good interfacial adhesion is disclosed . the method can include melt compounding more than two immiscible polymers with different viscosity ratios in the presence of more than one compatibilizer . the immiscible polymers may be chosen from a wide range of materials including but not limited to thermoplastics , elastomers , thermoplastic elastomers , fibers or composites of any of the aforementioned polymers . the compatibilizers may take the form of block copolymers , graft copolymers , random copolymers or other polymers known to reduce the interfacial tension of the immiscible polymers present in the blend . the compatibilizers may be functionalized to further reduce the size of the final morphology of the new polymer alloy . this method has been found to be advantageous in recycling commingled plastic wastes .