Abstract:Polystyrene (PS) is a synthetic aromatic hydrocarbon polymer prepared from the monomer styrene. Polystyrene can be foamed or solid. General-purpose polystyrene is hard, clear and rather brittle. It is a low cast resin per unit weight. It is a rather poor barrier to oxygen and water vapour and has a relatively low melting point. Polystyrene is one of the most widely used plastics, the scale of its production being several million tonnes per year. Polystyrene can be naturally transparent, but can be coloured wit… Show more
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