polystyreneA synthetic, organic polymer, composed of long chains of the aromatic compound styrene (C6H5CH=CH2). Polystyrene is a strong thermoplastic resin, acid- and alkali-resistant, non-absorbent, and an excellent electrical insulator. It is used as a rigid molded plastic and (for upholstery and thermal insulation) as a foam. Related categories• INDUSTRIAL CHEMISTRY• ORGANIC CHEMISTRY Also on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History |