Radiation-Chemical Transformations of Ethylene Glycol and Its Deuterated Derivative
in Deaerated Aqueous Solutions

O. V. Urbanovich; Урбанович О. В.; A. I. Davydenko; Давыденко А. И.; R. L. Sverdlov; Свердлов Р. Л.; A. V. Bekish; Бекиш А. В.; S. B. Lastovskii; Ластовский С. Б.; E. V. Tochilin; Точилин Е. В.

doi:10.31857/S0023119323050133

Radiation-Chemical Transformations of Ethylene Glycol and Its Deuterated Derivative in Deaerated Aqueous Solutions

Авторлар: 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
Мекемелер:
1. Belarusian State University
2. Research Institute for Physicochemical Problems, Belarusian State Universit
3. Institute of Physical and Organic Chemistry, National Academy of Sciences of Belarus
4. Scientific and Practical Center for Materials Science, National Academy of Sciences of Belarus
Шығарылым: Том 57, № 5 (2023)
Беттер: 363-368
Бөлім: RADIATION CHEMISTRY
URL: https://transsyst.ru/0023-1193/article/view/661474
DOI: https://doi.org/10.31857/S0023119323050133
EDN: https://elibrary.ru/LWDXEF
ID: 661474

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Аннотация
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Әдебиет тізімі
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Статистика

Аннотация

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.

Негізгі сөздер

radiolysis, ethylene glycol, radical, free radical fragmentation, H–D isotope effect

Әдебиет тізімі

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