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Radiation-Chemical Transformations of Ethylene Glycol and Its Deuterated Derivative in Deaerated Aqueous Solutions
- Authors: Urbanovich O.V.1, Davydenko A.I.1, Sverdlov R.L.1,2, Bekish A.V.3, Lastovskii S.B.4, Tochilin E.V.4
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Affiliations:
- Belarusian State University
- Research Institute for Physicochemical Problems, Belarusian State Universit
- Institute of Physical and Organic Chemistry, National Academy of Sciences of Belarus
- Scientific and Practical Center for Materials Science, National Academy of Sciences of Belarus
- Issue: Vol 57, No 5 (2023)
- Pages: 363-368
- Section: RADIATION CHEMISTRY
- URL: https://rjraap.com/0023-1193/article/view/661474
- DOI: https://doi.org/10.31857/S0023119323050133
- EDN: https://elibrary.ru/LWDXEF
- ID: 661474
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Abstract
This study is devoted to the effect of complete deuteration of the ethylene glycol carbon skeleton on the formation of its radiation-induced free-radical transformations products in deaerated aqueous solutions at pH 7.00 ± 0.10 and a dose rate of 0.064 ± 0.002 Gy/s. It has been established that the chain process of fragmentation of carbon-centered ethylene glycol radicals (∙CH(OH)CH2OH) plays an important role in the formation of acetaldehyde. The replacement of protium atoms located at carbon atoms by deuterium decreased the radiation-chemical yield of acetaldehyde in aqueous 1 M solutions of diols by a factor of 8. The results of this study indicate that the use of deuterium exchange at the carbon skeleton of organic molecules is a promising way for increasing their resistance to radiation-induced free radical fragmentation processes.
About the authors
O. V. Urbanovich
Belarusian State University
Email: olga.urbanovich@gmail.com
Minsk, 220030 Belarus
A. I. Davydenko
Belarusian State University
Email: olga.urbanovich@gmail.com
Minsk, 220030 Belarus
R. L. Sverdlov
Belarusian State University; Research Institute for Physicochemical Problems, Belarusian State Universit
Email: olga.urbanovich@gmail.com
Minsk, 220030 Belarus; Minsk, 220006 Belarus
A. V. Bekish
Institute of Physical and Organic Chemistry, National Academy of Sciences of Belarus
Email: olga.urbanovich@gmail.com
Minsk, 220072 Belarus
S. B. Lastovskii
Scientific and Practical Center for Materials Science, National Academy of Sciences of Belarus
Email: olga.urbanovich@gmail.com
Minsk, 220072 Belarus
E. V. Tochilin
Scientific and Practical Center for Materials Science, National Academy of Sciences of Belarus
Author for correspondence.
Email: olga.urbanovich@gmail.com
Minsk, 220072 Belarus
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