Gaseous products of the bombardment of a tetrafluoroethylene–hexafluoropropylene copolymer with accelerated MeV protons
- Authors: Allayarov S.R.1, Dixon D.A.2
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Affiliations:
- Institute of Problems of Chemical Physics
- Department of Chemistry
- Issue: Vol 51, No 1 (2017)
- Pages: 1-5
- Section: Radiation Chemistry
- URL: https://journal-vniispk.ru/0018-1439/article/view/157088
- DOI: https://doi.org/10.1134/S0018143917010027
- ID: 157088
Cite item
Abstract
The action of 1- to 4-MeV protons on a copolymer of tetrafluoroethylene and hexafluoropropylene (FEP) in a vacuum is accompanied by the release of more than 25 gaseous products and a decrease in its thermal stability. During the course of proton bombardment, the predominant rupture of lateral C–CF3 bonds with the release of CF3 particles occurs along with the detachment of fluorine and hydrogen atoms yielding H2 and HF. Unlike polytetrafluoroethylene, a distinctive feature of the radiolysis of FEP is a decrease by a factor of 5 in the probability of fluorine detachment from the FEP macromolecule by accelerated protons.
About the authors
S. R. Allayarov
Institute of Problems of Chemical Physics
Author for correspondence.
Email: sadush@icp.ac.ru
Russian Federation, Chernogolovka, Moscow oblast, 142432
D. A. Dixon
Department of Chemistry
Email: sadush@icp.ac.ru
United States, Tuscaloosa, Alabama AL, 35487-0336
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