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Russian Journal of Electrochemistry

, Volume 36, Issue 7, pp 752–755 | Cite as

Role of radical cations in the activity mechanism of antioxidants in a series of 2,6-dialkyl substituted phenols by the example of the oleic acid oxidation

  • N. T. Berberova
  • L. B. Kirillova
  • Yu. T. Pimenov
  • E. R. Milaeva
  • A. I. Prokofev
Article

Abstract

The influence of electrochemical characteristics of antioxidants (dl-α-tocopherol, 2,6-dialkyl substituted phenols) on the oleic acid oxidation by oxygen of air is studied at 65°C. The stability of the antioxidant radical cations, which form in the first oxidation step, is presumed to be connected with their antioxidant activity. The formation of stable paramagnetic intermediates is confirmed by the example ofdl-α-tocopherol and its acetate, using ESR spectroscopy. Different reactivity of the antioxidants with respect to a single-electron oxidant, spatially hindered o-quinone, is studied

Keywords

Oleic Acid Radical Cation CF3COOH Lead Dioxide Butylphenol 
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.

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Copyright information

© MAIK “Nauka/Interperiodica” 2000

Authors and Affiliations

  • N. T. Berberova
    • 1
  • L. B. Kirillova
    • 1
  • Yu. T. Pimenov
    • 1
  • E. R. Milaeva
    • 1
    • 2
  • A. I. Prokofev
    • 1
    • 3
  1. 1.Astrakhan State Technical UniversityRussia
  2. 2.Moscow State UniversityMoscowRussia
  3. 3.Nesmeyanov Institute of Organoelement CompoundsRussian Academy of SciencesMoscow, GSP-1Russia

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