Polystyrene is a synthetic aromatic polymer that can be rigid, foamed, or an integral part of a copolymer. Copolymers include systems such as high impact polystyrene (HIPS) and acrylonitrile butadiene ...
Polystyrene, a wildly popular type of plastic, can withstand seriously punishing conditions while refusing to break down, and environmentalists have urged lawmakers to ban or dramatically limit ...
visors and baths High impact polystyrene (HIPS) Rigid, cheap, available in a lot of colours Can be cut and vacuum formed easily, food safe but toxic when burned, used for CD cases and yoghurt pots ...