Abstract
The action of accelerated 1–4-MeV protons on polychlorotrifluoroethylene in vacuum was accompanied by a preferential rupture of the main polymer chain with the release of more than 30 gaseous products, most of which were tetrafluoroethylene and chlorine- and fluorine-containing compounds. As a result of proton bombardment, the concentration of carbon on the polymer surface decreased and the concentrations of fluorine and chlorine increased. It has been shown that the incorporation of chlorine atoms into the structure of a perfluoropolymer changes the mechanism of its proton bombardment and helps to protect its macromolecule from the reaction of fluorine abstraction by accelerated protons with the formation of hydrogen fluoride. It has been found that irradiation with accelerated protons leads to changes in surface energy characteristics.
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Funding
The study was supported by the Russian Foundation for Basic Research, project no. 19-33-50041\19, and performed using the equipment of the Analytical Center for Shared Use at the Institute of Problems of Chemical Physics, Russian Academy of Sciences and the Gammatok-100 facility at the Institute of Problems of Chemical Physics, Russian Academy of Sciences. DAD thanks the Robert Ramsay Chair Fund of The University of Alabama for support.
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Translated by V. Makhlyarchuk
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Allayarov, S.R., Dixon, D.A., Allayarova, U.Y. et al. Elemental Analysis of Polychlorotrifluoroethylene Bombarded with Accelerated MeV Protons and the Composition of Gaseous Products. High Energy Chem 54, 276–284 (2020). https://doi.org/10.1134/S0018143920040025
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DOI: https://doi.org/10.1134/S0018143920040025