Concentration Effects in the Radiochromic Behavior of Polyvinyl Alcohol–Phosphotungstic Acid Nanocomposites
https://doi.org/10.47612/0514-7506-2022-89-3-425-427
Abstract
Coloration of polyvinyl alcohol–phosphotungstic acid (PVA–PTA) 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 reduction of heteropolyanion by two electrons, while at high concentrations (≥20%), one-electron reduction takes place. In the intermediate range of concentrations, the fraction of PTA heteropolyanions reduced by two electrons decreases with a simultaneous increase in the fraction of one-electron reduced anions.
About the Authors
N. I. Sushko
B. I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus
Belarus
Belarus
Minsk
A. V. Protosovskaya
B. I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus
Belarus
Belarus
Minsk
O. N. Tretinnikov
B. I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus
Belarus
Belarus
Minsk
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Review
For citations:
Sushko N.I., Protosovskaya A.V., Tretinnikov O.N. Concentration Effects in the Radiochromic Behavior of Polyvinyl Alcohol–Phosphotungstic Acid Nanocomposites. Zhurnal Prikladnoii Spektroskopii. 2022;89(3):425-427. (In Russ.) https://doi.org/10.47612/0514-7506-2022-89-3-425-427
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