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 ...

EVA, which is the most commonly used for ethylene-vinyl acetate copolymers, instead of the standardized acronym E/VAC (ISO 1043). VAE is sometimes used for high VA contents VA for vinyl acetate ...

This became possible through the use of random copolymers of polyethylene glycol, which adsorbs water well, and polypropylene glycol, which adsorbs water slightly less well. The difference in ...