Dielectric relaxation in nanocomposites based on thermoplastic polyimide and carbon nanofibres

Authors

DOI:

https://doi.org/10.33910/2687-153X-2020-1-1-15-19

Keywords:

dielectric relaxation, polymeric composites, polyimide

Abstract

The article presents the study of R-SOD 3% nanocomposite’s molecular mobility based on thermoplastic PI (R-SOD) with 3% of carbon nanofibres by dielectric method. Dielectric spectrum shows two processes of dipole polarisation relaxation: in the glassy state (local β process) and in the highly elastic state (cooperative a process) related to molecular mobility of phenyl rings with polar —О— groups in diamine and dianhydride parts of a macromolecule and to segmented motion, respectively.

References

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Nikonorova, N. A., Kononov, A. A., Dao, H. T., Castro, R. A. (2019) Molecular mobility of thermoplastic aromatic polyimides studied by dielectric spectroscopy. Journal of Non-Crystalline Solids, 511, 109–114. DOI: 10.1016/j.jnoncrysol.2018.12.032 (In English)

Published

2020-03-27

Issue

Section

Condensed Matter Physics