Glossary..Plastics Production .. A to Z. . molecular structure, but harder, stronger and less flexible. POLYSTYRENE : A .. HIPS ), a COPOLYMER of butadiene and styrene. Expanded polystyrene is ..
Geofoam Research Center - Manufacture of Geofoam . Polystyrene is an "amorphous" polymer with bulky molecular chains or large .. and fuse (bond) together to form an expanded polystyrene (EPS) block.
Plastics . This results in a rigid molecular structure. Although they soften when heated the .. Expanded Polystyrene : very light and bouyant. absorbs shocks.