Features of polymer materials degradation under influence of short-wave laser radiation

The features of macromolecular compounds (organosilicon resin, polytetrafluoroethylene) of their mixtures with copper formate degradation under the influence of laser radiation with different wavelengths are determined. The reactivity of the generated volatile degradation products was evaluated. The molecular structure and morphology of deposited coatings were studied. At the same intensity, the influence of shorter-wavelength laser radiation ($\lambda = 266$ nm) on an organosilicon polymer leads to the formation of coatings with a lower concentration of Si–O–C groups relative to the content of Si–С$_6$Н$_5$ groups compared to radiation with a wavelength of $535$ and $355$ nm. The value of the laser radiation length has no noticeable effect on the molecular structure of coatings based on PTFE and PTFE + copper. This may indicate a predominantly photothermal mechanism of the initial targets degradation.