ABSTRACT
Here we considered degradation and stabilization of PAl, PPA, PSF PEL, LCP, etc. At the beginning of this investigation, these materials were united due to their functional similarity - heterochain heat-resistant polymer (HRP) processed at 280 - 400°C with operation temperatures up to 250°C according to the known engineering index for plastics UL 746. Now we also have other grounds to unite them. The phenomenology of degradation and its inhibition indicates similar reflexes of alkanimide or amide and arylene sulfone, or ester macrostructure to the external impact, as well as the presence of other substances in the system. Let us designate these substances as additives.
