Research Article

A Study of the Deformation, Network, and Aging of Polyethylene Oxide Films by Infrared Spectroscopy and Calorimetric Measurements

Figure 8

The CO and CH2 stretching bands in thick films in the process of aging Trace (a) Multipeak CO band in a 27 μm film showing tracers of network at 1144 cm−1 and 956 cm−1 Trace (b) Multipeak CO band in a 30 μm film with the same tracers at 1144 cm−1 and 956 cm−1. Trace (c) Double peak CO band in a 45 μm film. The 1144 cm−1 and 956 cm−1 bands are not apparent at that stage. Trace (d) Multipeak in the CH2 stretching band (56 μm). The films are aged three days except b, aged one week. For comparison, the CH2 stretching band of a 15 μm film after the temperature treatment (Therm-T) is given in the trace (e).
432046.fig.008a
432046.fig.008b