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Полистирен – УикипедияПолистиренът (или полистирол) е полимер, изготвян от мономера стирен (стирол), течен въглеводород, произвеждан промишлено от петрол. При стайна температура полистиролът е твърд термопласт с аморфна структура, но при по-висока температура може да бъде разтопен и втвърден отново. Стиренът е ароматен мономер, а полистиренът е ароматен полимер. Произведен е за пръв път от BASF през 1930-те.
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