An Investigation of Compatibility Nature of Polyblends Peg 400/ps 35000 and Peg 4000/Ps 35000 Using Ultrasonic and Related Techniques

The scientific and commercial progress in the area of polymer blends during the past two decades has been tremendous and was driven by the realization that new molecules are not always required to meet the needs of new materials and that blending can usually be implemented to meet the needs of new materials more rapidly and economically than the development of new chemistry. Since the beginning of the plastic industry it has been recognised that blending yields materials with properties superior to the feature of the individual components. There has been progress in the understanding of the behavior of polymer blends especially the thermodynamics and rheology. New blends are constantly being developed, characterized, and blends with different desirable features are now available. Blending technology is useful in the field of plastic recycling also. In the present case, an attempt has been made to blend Polyethylene glycol with polystyrene. Ultrasonic studies are done for various blend compositions [0/100, 20/80, 40/60, 50/50, 60/40, 80/20, 100/0] of PEG 400/PS 35000 and PEG 4000/PS 35000 at 303 K in Toluene. The blends showed semicompatible nature. The compatible nature was further examined and confirmed through refractive index and optical microscopic studies.