Aqueous Solution Properties of Disulfide Linked Gemini and Cleaved Monomeric Thiol Surfactants
スポンサーリンク
概要
- 論文の詳細を見る
Monomeric thiol surfactants, [CnH2n+1N(CH3)2CH2CH2SH]Br, were produced by the cleavage of gemini surfactant containing a disulfide bond in the spacer chain, [CnH2n+1N(CH3)2CH2CH2SSCH2CH2N(CH3)2CnH2n+1]2Br. The disulfide bond was completely reduced by the addition of four times moles of dithiothreitol in water at room temperature. The critical micelle concentrations of monomeric surfactants were significantly increased in comparison with original gemini surfactants. The monomeric thiol surfactants were stable in the presence of dithiothreitol, whereas they returned gradually to their original gemini surfactants within several days due to air oxidation in water without dithiothreitol. The micelle formation induced by the disulfide linkage formation was suggested by the fluorescence intensity ratio of pyrene. The time course of decrease in thiol concentration associated with the recovery of gemini surfactants was confirmed by the absorption spectra utilizing the reactions with 4,4’-dithiopyridine.
- 日本油化学会の論文
著者
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Asakawa Tsuyoshi
School Of Chemistry Coll. Of Sci. And Engineering Kanazawa Univ.
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SHIMIZU Yasuhiro
Division of Chemistry, Graduate School of Science, Kyoto University
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Ohta Akio
Division of Material Sciences, Graduate School of Natural Science and Technology, Kanazawa Universit
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Asakawa Tsuyoshi
Division of Material Sciences, Graduate School of Natural Science and Technology, Kanazawa Universit
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Miyagishi Shigeyoshi
Division of Material Sciences, Graduate School of Natural Science and Technology, Kanazawa Universit
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Ozawa Tadahiro
Division of Material Sciences, Graduate School of Natural Science & Technology, Kanazawa University
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Shimizu Yasuhiro
Division Of Chemistry Graduate School Of Science Kyoto University
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Shimizu Yasuhiro
Division of Material Sciences, Graduate School of Natural Science & Technology, Kanazawa University
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ASAKAWA Tsuyoshi
Division of Material Sciences, Graduate School of Natural Science & Technology, Kanazawa University
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ASAKAWA Tsuyoshi
Division of Material Sciences, Graduate School of Natural Science & Technology
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OHTA Akio
Division of Material Sciences, Graduate School of Natural Science & Technology
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MIYAGISHI Shigeyoshi
Division of Material Sciences, Graduate School of Natural Science & Technology, Kanazawa University
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MIYAGISHI Shigeyoshi
Division of Material Sciences, Graduate School of Natural Science & Technology
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OZAWA Tadahiro
Division of Material Sciences, Graduate School of Natural Science & Technology, Kanazawa University
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