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<p>A solid product was obtained during a long-term gamma irradiation of liquid hexafluorobenzene in a glass tube under oxygen-free conditions. Complete conversion into a solid was achieved at a total dose of 2.6&#xa0;10<sup>7</sup>&#xa0;Gy and there was no significant gas yield. The XPS data show that the product is similar in elemental composition to the parent hexafluorobenzene and the contact angle measurements demonstrate hydrophobicity of the material. Obtained NMR data suggest that the material predominantly consists of perfluoropolystyrene units and short fluoroalkyl fragments present in much smaller amounts.</p>

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Characterization of Hexafluorobenzene Long-Term Gamma Radiolysis Product by 19F and 13C MAS NMR

  • 期刊论文

  • 发表日期：

    2026年7月23日

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  • S. G. Vasil’ev,
  • Y. M. Shulga,
  • E. N. Kabachkov,
  • P. P. Kushch,
  • G. A. Kichigina,
  • D. P. Kiryukhin,
  • M. V. Zhidkov

摘要

A solid product was obtained during a long-term gamma irradiation of liquid hexafluorobenzene in a glass tube under oxygen-free conditions. Complete conversion into a solid was achieved at a total dose of 2.6 107 Gy and there was no significant gas yield. The XPS data show that the product is similar in elemental composition to the parent hexafluorobenzene and the contact angle measurements demonstrate hydrophobicity of the material. Obtained NMR data suggest that the material predominantly consists of perfluoropolystyrene units and short fluoroalkyl fragments present in much smaller amounts.