FT-IR spectroscopy, in the mid-infrared (MIR) and near infrared (NIR) regions, was used to investigate possible interactions in the polymer system made with glycidyl azide and ammonium dinitramide (GAP/ADN). The GAP and ammonium perchlorate (GAP/AP) system with the most usual oxidizer was studied by MIR. Major spectrometric changes were observed for the GAP/ADN system, with a broadening of the bands in the region between 3100-3500cm-1, pointing to interactions between OH groups from GAP and NH4+ groups from ADN or AP. Also noted were a decrease in band intensity for the N3 group in GAP and an increased intensity of nitronium (NO2+) of ADN, suggesting interaction between these groups in the GAP/ADN system.
Energetic polymer; GAP; ADN; AP; FT-IR; interaction
