Nanocomposites based on thermoplastic aromatic polyimides with cerium dioxide nanoparticles: dielectric spectroscopy

نویسندگان

چکیده

The molecular mobility of films thermoplastic aromatic polyimides and nanocomposites based on them with 3% cerium dioxide has been studied by dielectric spectroscopy. Three relaxation regions dipole polarization were found for the initial polyimides, γ β (in glassy state) α (transition to a highly elastic state).The introduction into matrix polyimide leads suppression process appearance in spectra nanocomposites, along process, second β1.The temperature dependences time γ, β1 processes are linear correspond Arrhenius equation, curved described Vogel-Tamman-Hesse equation. interpretation mechanisms observed is given. Keywords: Polymer-inorganic nanoscale dioxide, characteristics, transition temperatures, processes.

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ژورنال

عنوان ژورنال: Fizika tverdogo tela

سال: 2022

ISSN: ['0367-3294', '1726-7498']

DOI: https://doi.org/10.21883/pss.2022.08.54636.333