%A Zhao Qiuling, Gao Zhinong
%T Synthesis and surface-active property of bis-quaternary ammonium-sodium sulfate Gemini surfactant
%0 Journal Article
%D 2006
%J Front. Chem. China
%J Frontiers of Chemistry in China
%@ 1673-3495
%R 10.1007/s11458-006-0050-9
%P 434-437
%V 1
%N 4
%U {https://journal.hep.com.cn/fcc/EN/10.1007/s11458-006-0050-9
%8 2006-12-05
%X 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 233ºC.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 15ºC are 7.2?10-5 mol/L and 34.5 mN/m, respectively.