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Effect of Gamma Radiation Dose on the Crystal Structure of the Ethylene–Tetrafluoroethylene Copolymer

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Abstract

The effect of gamma radiation dose on the structure of an ethylene–tetrafluoroethylene copolymer has been studied. The copolymer powder has a triclinic crystal structure with space group P-1 and unit cell parameters of a = 8.84 Å, b = 5.34 Å, c = 4.90 Å, α = 99.11°, β = 85.84°, and γ = 90.89°. The coherent scattering region of the copolymer linearly increases from 4.3 to 6.8 nm with an increase in the absorbed gamma radiation dose to 2000 kGy. The degree of crystallinity of the copolymer decreases by 2.1% after irradiation with a dose of up to 100 kGy; after that, with an increase in the dose to 2000 kGy, the degree of crystallinity increases. The absence of significant changes in the crystal structure parameters of the copolymer after irradiation with a dose of up to 2000 kGy suggests that the copolymer crystal structure is resistant to radiation.

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Funding

This work was performed as part of the research program of Institute of Nuclear Physics of the Academy of Sciences of the Republic of Uzbekistan for 2020–2024 “Radiation-Stimulated Processes during Nuclear Transmutation of Doped Single-Crystal Silicon” at the Laboratory of radiation physics and solid-state electronics technology and supported by Russian Federation state order no. AAAA-A19-119041090087-4.

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Authors and Affiliations

  1. Institute of Nuclear Physics, Academy of Sciences of the Republic of Uzbekistan, 100214, Tashkent, Republic of Uzbekistan

    M. Yu. Tashmetov & N. B. Ismatov

  2. Federal Research Center for Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences, 142432, Chernogolovka, Moscow oblast, Russia

    S. V. Demidov & S. R. Allayarov

Authors
  1. M. Yu. Tashmetov
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  2. N. B. Ismatov
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  3. S. V. Demidov
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  4. S. R. Allayarov
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Correspondence to S. R. Allayarov.

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Translated by M. Timoshinina

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Tashmetov, M.Y., Ismatov, N.B., Demidov, S.V. et al. Effect of Gamma Radiation Dose on the Crystal Structure of the Ethylene–Tetrafluoroethylene Copolymer. High Energy Chem 58, 236–241 (2024). https://doi.org/10.1134/S0018143924020140

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  • DOI: https://doi.org/10.1134/S0018143924020140

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