Keyword: «hindered phenols»

The article presents the results of a study of the effect of the CO-4 stabilizer on the processes of degradation of high-density polyethylene when it is exposed to ultraviolet (UV) radiation by infrared (IR) spectroscopy. It has been shown that the absence of a stabilizer in the polymer leads to a decrease in the amount of vinyl groups. It is assumed that vinyl groups in samples without a stabilizer interact with alkyl radicals, which are formed during UV irradiation.