Dielectric relaxation in nanocomposites based on thermoplastic polyimide and carbon nanofibres
DOI:
https://doi.org/10.33910/2687-153X-2020-1-1-15-19Keywords:
dielectric relaxation, polymeric composites, polyimideAbstract
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
Bryant, R. G. (2006) Polyimides. In: Encyclopedia of polymer science and technology. 4th ed. [Online]. Available at: https://onlinelibrary.wiley.com/doi/pdf/10.1002/0471440264.pst272.pub2. DOI: 10.1002/0471440264.pst272.pub2 (In English)
Havriliak, S., Negami, S. (1967) A complex plane representation of dielectric and mechanical relaxation processes in some polymers. Polymer, 8, 161–210. DOI: 10.1016/0032-3861(67)90021-3 (In English)
Hedvig, P. (1977) Dielectric spectroscopy of polymers. Bristol: Adam Hilger Ltd., 430 p. (In English)
Kremer, F., Schönhals, A. (eds.). (2012) Broadband dielectric spectroscopy, Berlin; Heidelberg: Springer, 729 p. DOI: 10.1007/978-3-642-56120-7 (In English)
McCrum, N. G., Read, B. E., Williams, G. (1967) Anelastic and dielectric effects in polymeric solids. London; New York: John Wiley, 617 p. (In English)
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)
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Copyright (c) 2020 Hong Thi Dao, Rene Alejandro Castro Arata, Alexey A. Kononov, Natalia N. Nikonorova
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