Polystyrene
WEBJun 6, 2024 · Properties of Polystyrene. Polystyrene exists in an amorphous state because of the presence of bulky phenyl groups, packing of polystyrene chains is not efficient. Polystyrene is nonpolar in nature. The polystyrene melting point is 240 degrees Celsius. Polystyrene density is g/cm3.