Kinetics for micelle-monomer association-dissociation reaction of surfactants with hydrophobic counterions.
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概要
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A pressure-jump technique and a spin label technique were applied to the kinetic investigation of the association-dissociation reactions between monomer and micelle in surfactant solutions of STS, TMTS, TETS, and TPTS. The rate constants for the reactions were determined at several temperatures by the pressure-jump experiment. The ESR spectra of a spin probe, 5-SAL, solubilized in the micelles were analyzed in terms of the rotational correlation time, τ<SUB>c</SUB>. A linear relationship was found between <I>k</I><SUB>d</SUB>, the dissociation rate constant, and τ<SUB>c</SUB><SUP>−1</SUP>. This indicates that the dissociation rate depends on the fluidity of the micellar interior, and is in accord with the picture drawn by Aniansson <I>et al.</I> for the dissociation process. A qualitative discussion is presented on the activation parameters estimated from the present results according to the scheme presented by Aniansson <I>et al.</I>
- 公益社団法人 日本化学会の論文
著者
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Inoue Tohru
Department Of Chemistry Faculty Of Science Fukuoka University
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Shimozawa Ryosuke
Department Of Chemistry Faculty Of Science Fukuoka University
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Ikeuchi Masaru
Department of Chemistry, Faculty of Science, Fukuoka University
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Kuroda Takemi
Department of Chemistry, Faculty of Science, Fukuoka University
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