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The kinetics and mechanism of reactions of aliphatic stable nitroxyl radicals with alkyl and peroxide radicals during styrene oxidation

  • Kinetics and Mechanism of Chemical Reactions. Catalysis
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Abstract

A kinetic study (EPR, microvolumometry), quantum-chemical analysis (DFT B3LYP/6-31G*), and kinetic simulation of the antioxidant activity of aliphatic stable nitroxyl radicals during styrene oxidation was performed. The key reactions constituting the detailed mechanism of the process were analyzed. It was shown that the inhibiting action of nitroxyl radicals was caused by their reaction not only with alkyl radicals but also with substrate peroxy radicals, which resulted in the regeneration of nitroxyl radicals in chain-termination steps.

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Authors and Affiliations

  1. Yaroslavl State University, ul. Sovetskaya 14, Yaroslavl, 150000, Russia

    E. M. Pliss, I. V. Tikhonov & A. I. Rusakov

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  1. E. M. Pliss
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  2. I. V. Tikhonov
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  3. A. I. Rusakov
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Correspondence to E. M. Pliss.

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Original Russian Text © E.M. Pliss, I.V. Tikhonov, A.I. Rusakov, 2012, published in Khimicheskaya Fizika, 2012, Vol. 31, No. 5, pp. 41–49.

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Pliss, E.M., Tikhonov, I.V. & Rusakov, A.I. The kinetics and mechanism of reactions of aliphatic stable nitroxyl radicals with alkyl and peroxide radicals during styrene oxidation. Russ. J. Phys. Chem. B 6, 376–383 (2012). https://doi.org/10.1134/S1990793112020108

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  • DOI: https://doi.org/10.1134/S1990793112020108

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