Influence of γ-Irradiation on the Optical Properties of the Polyimide–YBa2Cu3O6.7 System

Influence of γ-irradiation on the optical properties of a polyimide film and its polymer compositions with fillers of a dispersed powder of a high-temperature superconductor ҮBa 2 Cu 3 O 6.7 (YBaCuO) with concentrations of 0.05, 0.10, and 0.50 wt.% was studied. It was established that γ-irradiation...

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Bibliographic Details
Published in:Journal of applied spectroscopy 2018-05, Vol.85 (2), p.260-266
Main Authors: Muradov, A. D., Korobova, N. E., Kyrykbaeva, A. A., Yar-Mukhamedova, G. Sh, Mukashev, K. M.
Format: Article
Language:English
Subjects:
Analytical Chemistry
Atomic/Molecular Structure and Spectra
Fillers
Fine structure
Gamma irradiation
High temperature superconductors
Macromolecules
Optical properties
Oxygen atoms
Physics
Physics and Astronomy
Radiation dosage
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Summary:Influence of γ-irradiation on the optical properties of a polyimide film and its polymer compositions with fillers of a dispersed powder of a high-temperature superconductor ҮBa 2 Cu 3 O 6.7 (YBaCuO) with concentrations of 0.05, 0.10, and 0.50 wt.% was studied. It was established that γ-irradiation with a dose up to 600 kGy does not affect the transparency of polyimide films in the visible region of the spectrum. However, at irradiation doses of 250 and 600 kGy, a weakly expressed fine structure appears in the spectra of polyimide films in the range of 220–300 nm due to the contribution of the resulting diene structures to the optical transmission and the increased content of oxygen atoms. The YBaCuO filler and γ-irradiation cause the polyimide transition from the amorphous state to the crystalline state, which is manifested in a sharp change in the spectrum in the range of ~2.3–3.9 eV. A significant increase in the extinction coefficient was found in the composite containing 0.50 wt.% of the filler that is associated with an increase in the radius of action of structurally active fillers on the macromolecules of the matrix.
ISSN:0021-9037
1573-8647
DOI:10.1007/s10812-018-0642-4