ABSTRACT

STABILIZATION AND MODIFICATION OF POLYCAPROAMIDE 2.1. Photo-and thermal destruction of aliphatic polyamides Aliphatic polyamides (PA) and products on their base are polymers with low stability to

ultra-violet irradiation and under the effect of solar radiation they destruct less than in a year [114]. In natural conditions ultra-violet part of solar spectrum with wave-length 290-350 nm is more dangerous for these polymers, though aliphatic PAs in this field have very weak absorption of chromophore amide group [32, 115]. That is why while examining the problem of PA phototransformations, unlike other polymers, both possibility of light absorption by impurities and self-absorption should be taken into consideration [116].