Microstructure and Morphology Study of Commercial High Impact Polystyrene Using Fractionation Methods

High Impact Polystyrene (HIPS) is a low cost, tough plastic material that is easy to thermoform and fabricate. Properties of different grades of HIPS are largely dependent on variousparameters such as ratio of polystyrene to the second polymer, molecular weight of the two polymers, mixing properties,grafting density and also microstructure of the resin. Previously, several researches have been carried out on microstructure study of HIPS; however, none of these studies have used Fractionation method to study the microstructure [1-4].