Y. Israeli et al., PHOTOINITIATED AND THERMOINITIATED OXIDATION OF HIGH-IMPACT POLYSTYRENE .1. CHARACTERIZATION BY FT-IR SPECTROSCOPY, Journal of polymer science. Part A, Polymer chemistry, 32(3), 1994, pp. 485-493
The photo- and thermooxidative degradation of different grades of high
-impact polystyrene (HIPS) has been studied by FT-IR spectroscopy. The
oxidized films were treated with NH3 and SF4 for the rapid identifica
tion and resolution of the various carbonyl species, alcohols, and hyd
roperoxides. All the sample gave similar oxidation products, but in va
rying quantities. The heterogenity in the film was also determined by
micro-FT-IR spectroscopy. The thermal degradation processes at differe
nt temperature were compared. (C) 1994 John Wiley & Sons, Inc.