Abstract:The molecular mobility of films of thermoplastic aromatic polyimides and nanocomposites based on them with 3% cerium dioxide has been studied by dielectric spectroscopy. Three relaxation regions of dipole polarization were found for the initial polyimides, γ and β (in the glassy state) and α (transition to a highly elastic state).The introduction of 3% cerium dioxide into the matrix polyimide leads to the suppression of the γ process and to the appearance in the spectra of nanocomposites, along with the β proc… Show more
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