Effect of cationic surfactants on limonene oxidation |
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Authors: | L M Pisarenko V G Kondratovich O T Kasaikina |
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Institution: | (1) N. N. Semenov Institute of Chemical Physics, Russian Academy of Sciences, 4 ul. Kosygina, 119991 Moscow, Russian Federation |
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Abstract: | Kinetic regularities of free radical formation during limonene oxidation with molecular oxygen in a chlorobenzene solution at 60 °C were studied by the inhibitor method under autooxidation conditions and with additives of surfactants (cetyltrimethylammonium chloride and bromide) using dimer 2,2′-bis2-(p-dimethylaminophenyl)indane-1,3-dione] and α-tocopherol as acceptors of radicals. In the presence of the surfactants, the rates of radical generation and oxidation increase sharply. The catalytic activity of cetyltrimethylammonium chloride is much higher than that of the corresponding bromide.__________Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 10, pp. 2110–2113, October, 2004. |
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Keywords: | 2 2′ -bis[2-(p-dimethylaminophenyl)indane-1 3-dione] α -tocopherol oxidation of limonene catalysis formation of free radicals cetyltrimethylammonium chloride cetyltrimethylammonium bromide |
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