Styrofoam vs. Polystyrene
Difference Between Styrofoam and Polystyrene
Expanded polystyrene foam, such as is used in cups and packaging.
(organic chemistry) A vinylic polymer of styrene, CH2CHphenyl.
a light resilient foam of polystyrene
(organic chemistry) An alkane chain of benzene molecules, RCH2CHphenylR.
a polymer of styrene; a rigid transparent thermoplastic;expanded polystyrene looks like a rigid white foam and is used as packing or insulation