ABSTRACT
The above Chapters considered phenomenological features of degradation process developing in PSF and PEl, PAl and PPA in the presence of oxygen at processing temperature (300 - 400°C) and solid-phase oxidation (150 - 250°C). These processes define loss of operation properties by polymers and materials derived from them. Before passing to description of attempts to decelerate degradation processes, let us generalize the above-mentioned experimental material and present the mechanism of thermal oxidation of the studied polymers.
