Introduction
There is a rapid growth in plastics consumption throughout the
world with polystyrene as one of the major plastics that is being
used for producing a variety of materials for a wide range of
applications. The forms of polystyrene widely used in industry are
general purpose polystyrene (GPPS), expanded polystyrene (EPS),
high impact polystyrene (HIPS), and syndiotactic polystyrene
(SPS).