Abstract
For side-chain liquid crystalline polyazomethine/fullerene C-60 nanocomposite (C-60 loading is 0.25 wt%), both real and imaginary components of the dielectric permittivity were investigated in wide regions of temperature and frequency. Analysis of frequency dependent permittivity allowed finding three relaxations (alpha, beta(1) and beta(2)) in the nanocomposite. They were attributed to specific modes of molecular mobility. beta-relaxations were described with the Arrhenius equation, whereas alpha-relaxation was described with the Vogel-FulcherTammann equation. Anti-plasticization effect of the C-60 doping was shown to be manifested as an increase of the glass transition temperature of the nanocomposite as compared with that of the neat polymer.