from amine group to free radical. Depending on their
structure, amines display differing effectiveness. In the
case of aromatic amines, in the first stage of the polymer
photostabilization process—in the direct reaction with
ROO—an amine radical is formed. In the following stage
of the reaction, the amine radical is stabilised by resonance
and can react with other radicals forming different types of
products [26]. The structure of quaternary amine, which
was the modifying agent for Nanofil2, is shown in Fig. 1.