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Liquid Crystals and their Application
Russian Journal Zhidkie kristally i ikh prakticheskoe ispol'zovanie Жидкие кристаллы и их практическое использование |
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Zhidk. krist. ikh prakt. ispol'z. = Liq. Cryst. and their Appl., 2009, 2, 13—20. |
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Acid-Base Properties and Nucleophilicity of Decylamine in Aqueous Micellar Solutions of Cationic Surfactants with Hydroxyalkyl Fragment in the Head Group
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A. B. Mirgorodskaya, E. I. Yatckevich, S. S. Lukashenko
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Author affiliations
A. E. Arbuzov Institute of Organic and Physical Chemistry
Kazan Scientific Center of the Russian Academy of Sciences
120088 Kazan, Akad. Arbuzova Str., 8. Russia.
E-mail: mirgorod@iopc.knc.ru
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Abstract
The differences between the hydroxyalkylated surfactants and their trimethylammonium analogues observed in a course of the p-nitrophenylacetate hydrolysis reaction are due to the hydrogen bonding of the hydroxyalkyl substitutor with the substrate. From one side, decylamine, being introduced to the system, shows up as the nucleophilic reactant responsible for the aminolysis contribution to the total p-nitrophenylacetate destruction rate. On the other hand it facilitates micellization in the system via the mixed aggregates formation.
Keywords: hydroxyalkylated surfactants, decylamine, hydrolysis, kinetics, mixed micelles
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