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Reaction Kinetics and Catalysis Letters

, Volume 38, Issue 1, pp 187–192 | Cite as

Formation mechanism of hexafluoropropylene oxide in low-temperature liquid-phase oxidation of hexafluoropropylene by molecular oxygen

  • V. V. Shapovalov
  • V. A. Poluektov
Article

Abstract

The effect of oxygen pressure on the conversion rate of hexafluoropropylene and the formation rates of reaction products (hexafluoropropylene oxide, trifluoroacetyl-fluoride, carbonylfluoride and perfluoropolyesterpolyperoxide including separate studies of its peroxide oxygen) has been studied. It has been established that epoxidation by peroxide radicals RO2\+C3F6→Ro\+C3F6O cannot account for the formation mechanism of hexafluoropropylene oxide. An epoxidation mechanism is suggested implying the participation of alkoxyl radicals via the formation of the alkyl radical R−O−C3F6\ as an intermediate.

Keywords

Peroxide Epoxidation Alkyl Radical Formation Rate Conversion Rate 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Abstract

Изучено влияние давления кислорода на скорость расходования гексафторпропилена и скорости образования продуктов реакции-окиси гексафторпропилена, трифторацетилфторида, карбонилфторида и перфторполизфирполипе-роксида, в том числе отдельно его пероксидного кислорода. Показано, что реакция зпоксидирования пероксидными радикалами RO2\+C3F6→RO\+C3F6O не может объяснить механизм образования окиси гексафторпропилена. Предложен механизм зпоксидирования с участием алкоксильных радикалов через промежуточное образование алкильного радикала R−O−C3F6.

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Copyright information

© Akadémiai Kiadó 1989

Authors and Affiliations

  • V. V. Shapovalov
    • 1
  • V. A. Poluektov
    • 1
  1. 1.Research Institute of Physical ChemistryObninskUSSR

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