IR spectral data for polystyrene recorded at temperatures ranging from 30-210°C are reported. Certain IR band frequencies shift to lower frequency by as much as 4.5 cm<sup>−1</sup> over the temperature range studied. In air, polystyrene oxidizes at 180°C.
R. A. Nyquist, "Infrared Study of Polystyrene at Variable Temperature," Appl. Spectrosc. 38, 264-267 (1984)