The kinetics of the oxidation of malonic acid and (its substituted compounds, methyl-, ethyl-, butyland benzyl-malonic acid) by ceric ions has been studied at 20.0 ◦C in the absence and the presence of the surfactant N-tetradecyl-N,N-dimethylamine oxide (C14DMAO). The addition of increasing amounts of C14DMAO influences the rate of the redox process to an extent that significantly depends on the hydrophobicity of the reducing species. The reactivity data together with the estimated binding constants and the standard transfer free energies of the malonic acids from water to the micelles suggest that the malonic acid is confined to the aqueous pseudo-phase while for the other solutes the binding occurs in the palisade layer of micelles.

Rossi, F., Turco Liveri, M.L. (2009). The effect of N-tetradecyl-N,N-dimethylamine oxide micelles on the kinetics of the electron transfer reaction of Ce(IV) with substituted malonic acids. COLLOIDS AND SURFACES. A, PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 351, 60-64 [doi:10.1016/j.colsurfa.2009.09.035].

The effect of N-tetradecyl-N,N-dimethylamine oxide micelles on the kinetics of the electron transfer reaction of Ce(IV) with substituted malonic acids

ROSSI, Federico;TURCO LIVERI, Maria Liria
2009-01-01

Abstract

The kinetics of the oxidation of malonic acid and (its substituted compounds, methyl-, ethyl-, butyland benzyl-malonic acid) by ceric ions has been studied at 20.0 ◦C in the absence and the presence of the surfactant N-tetradecyl-N,N-dimethylamine oxide (C14DMAO). The addition of increasing amounts of C14DMAO influences the rate of the redox process to an extent that significantly depends on the hydrophobicity of the reducing species. The reactivity data together with the estimated binding constants and the standard transfer free energies of the malonic acids from water to the micelles suggest that the malonic acid is confined to the aqueous pseudo-phase while for the other solutes the binding occurs in the palisade layer of micelles.
2009
Settore CHIM/02 - Chimica Fisica
Rossi, F., Turco Liveri, M.L. (2009). The effect of N-tetradecyl-N,N-dimethylamine oxide micelles on the kinetics of the electron transfer reaction of Ce(IV) with substituted malonic acids. COLLOIDS AND SURFACES. A, PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 351, 60-64 [doi:10.1016/j.colsurfa.2009.09.035].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/41007
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