Alkylaldehyde–bisulfite adducts as cleavable surfactants

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• 作者：Yoshihiro Itoh ; Junpei Horiuchi ; Ken Takahashi
• 关键词：Cleavable surfactant ; Anionic surfactant ; Hydrolysis ; Aldehyde– ; bisulfite adduct
• 刊名：Colloids and Surfaces A ; Physicochemical and Engineering Aspects
• 出版年：2007
• 期刊代码：22_09277757
• 类别：ch
• 出版时间：31 October 2007
• 卷：308
• 期：1-3
• 页码：118-122
• 文件大小：145 K

摘要

Alkylaldehyde–bisulfite adducts with octyl, decyl, and dodecyl groups (C_nS: n = 8,10,12) were synthesized and the surface-active properties of the water-soluble compounds were compared. Exchange of the counter anions of C₁₀S and C₁₂S from sodium to tetramethylammonium solubilized them in water. The latter ammonium salt (C₁₂S-QA) had surface activities as good as a classical surfactant, sodium dodecylsulfate, and dissociated promptly in weakly basic solution at room temperature to be a non-surfactant. It was also found that C₁₂S-QA solubilized a hydrophobic substrate (solid), N,N-dimethyl-3-nitroaniline, in water and then separated it as a precipitate after alkali treatment.