Aqueous solution properties of disulfide linked gemini and cleaved monomeric thiol surfactants.
作者： Tsuyoshi Asakawa , Yasuhiro Shimizu , Tadahiro Ozawa , Akio Ohta , Shigeyoshi Miyagishi
DOI: 10.5650/JOS.57.243
关键词:
摘要: Monomeric thiol surfactants, [CnH2n+1N(CH3)2CH2CH2SH]Br, were produced by the cleavage of gemini surfactant containing a disulfide bond in spacer chain, [CnH2n+1N(CH3)2CH2CH2SSCH2CH2N(CH3)2CnH2n+1]2Br. The was completely reduced addition four times moles dithiothreitol water at room temperature. critical micelle concentrations monomeric surfactants significantly increased comparison with original surfactants. stable presence dithiothreitol, whereas they returned gradually to their within several days due air oxidation without dithiothreitol. formation induced linkage suggested fluorescence intensity ratio pyrene. time course decrease concentration associated recovery confirmed absorption spectra utilizing reactions 4,4’-dithiopyridine.
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