Abstract
For side-chain liquid crystalline polyazomethine/fullerene C60 nanocomposite (C60 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 (α, β 1 and β 2) in the nanocomposite. They were attributed to specific modes of molecular mobility. β-relaxations were described with the Arrhenius equation, whereas α-relaxation was described with the Vogel-Fulcher-Tammann equation. Anti-plasticization effect of the C60 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.
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