Synthesis and surface-active property of bis-quaternary ammonium-sodium sulfate Gemini surfactant

• 来源期刊: 中国高等学校学术文摘·化学
• 关键词: Gemini surfactant synthesis surface activity
• 年，卷（期）: 2006,（4）
• 页码范围: 434-437
• 页数: 4页
• 语种: 英文

摘要

N,N-dimethyldodecylamine,hydrochloride and epichlorohydrin (molar ration is 2:1:1) were used to synthesize bis-quaternary ammonium Gemini surfactant with a hydroxyl in its spacer group by the one-pot method.This hydroxyl was sulfonated by chlorosulfonic acid and then neutralized to bis-quaternary ammonium-sodium sulfate zwitterionic Gemini surfactant.The yield of the final product was 78%,and the melting point was 231-233℃.Its structure was characterized by IR,1H-NMR,MS,and elemental analyses.The critical micelle concentration (cmc)and surface tension of the novel zwitterionic Gemini surfactant in aqueous solution at 15℃ are 7.2×10-5 mol/L and 34.5 mN/m,respectively.