Coloration of polyvinyl alcohol–phospho-tungstic acid (PVAPTA) films by gamma radiation was studied at different concentrations of PTA. It was found that at a minimum concentration (1%), the coloration of the films occurs as a result of radiation-induced two-electron reduction of the heteropolyanion, while one-electron reduction takes place at high concentration (≥20%). In the intermediate concentration range, the fraction of PTA heteropolyanions reduced by two electrons decreases with a concurrent increase in the fraction of one-electron-reduced anions.
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13 September 2022
A Correction to this paper has been published: https://doi.org/10.1007/s10812-022-01430-5
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Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 89, No. 3, pp. 425–427, May–June, 2022. https://doi.org.10.47612/051475062022893425427.
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Sushko, N.I., Protosovskaya, A.V. & Tretinnikov, O.N. Concentration Effects in the Radiochromic Behavior of Polyvinyl Alcohol–Phospho-Tungstic Acid Nanocomposites. J Appl Spectrosc 89, 522–524 (2022). https://doi.org/10.1007/s10812-022-01390-w
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DOI: https://doi.org/10.1007/s10812-022-01390-w