Abstract: 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.