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21 results on '"Pokholok, T. V."'

6. Synergistic Effects of Cyclic Ketals in Fuel Compositions and Antibacterial Agents.

Author

Vol'eva, V. B., Ovsyannikova, M. N., Pokholok, T. V., and Ryzhakova, A. V.

Subjects
KETALS, ANTIBACTERIAL agents, CARBOXYLIC acids, RADICALS (Chemistry), TRICLOSAN
Abstract

A synergistic effect of cyclic ketals in compositions with lower alcohols has been revealed for the first time while adding those ketals to alcohol-containing gasoline. By using model oxidation reactions of ketals and their structural analogs, 1,3-benzodioxolanes, in protic media, the synergistic effect was rationalized assuming the formation of ketal–alcohol complexes possessing surfactant properties, which give rise to hydrated supramolecular structures around them. Deactivation of hot radicals with the transition from the explosive combustion mode to stationary combustion inside these structures is more effective than in the bulk medium. Such structuring effect is general for the behavior of ketals in hydrophobic–hydrophilic systems, including biological ones. This conclusion has been confirmed by studying the activity of cyclic ketals in compositions with antibacterial agents, as well as with alcohols and carboxylic acids. [ABSTRACT FROM AUTHOR]

Published
2023
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18. Oxidative radical generation via nitrogen dioxide dimer conversions induced by amide groups of macromolecules.

Author

Davydov, E. Ya., Gaponova, I. S., Pokholok, T. V., Pariiskii, G. B., and Zaikov, G. E.

Subjects
NITROGEN tetroxide, POLYAMIDES, RADICALS (Chemistry), AROMATIC compounds, MACROMOLECULES, AMIDES
Abstract

The article presents information on a study which determined whether planar nitrogen tetroxide O2N-NO2 (PD) conversion into nitrosyl nitrate ONONO2(NN) is possible under the influence of amide groups of aromatic polyamides (PA) and polyvinylpryrrolidone (PVP) with further generation of stable radicals by reactions. A review of the related literature is given. Findings showed the production of nitrogen-containing radicals as a result of subsequent reactions.

Published
2008
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