Processes of Aggregation of Fullerene C 60 in Polymer–Fullerene Composites

The results of studying the absorption spectra of C 60 polymer–fullerene composites are presented. In the composite polymethylmethacrylate–C 60 , a gradual process of aggregation of the fullerene upon heating is recorded. This made it possible to determine the diffusion coefficient of C 60 molecules in this polymer. The difference in the absorption spectra of C 60 clusters in different composites indicates the interaction of the clusters with a polymer matrix.