Citation:
DUAN Ming, HU Xing-Qi, ZUO Xiao-Ling, CHEN Yuan-Dong. Synthesis of a Cationic Gemini Surfactant with Amide Group[J]. Chinese Journal of Applied Chemistry,
;2004, 21(5): 538-540.
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A novel Gemini surfactant bis[N,N'-(dodecanoylamino)ethyl]triethylenediamine bromide(BDEDE) was synthesized from ethyl bromide and bis(2-dodecanoylaminoethyl) ethylene diamine(BDEE), the latter was prepared from lauric acid and N,N'-bis(2-aminoethyl) ethylenediamine. The structure of the Gemini surfactant was characterized by elemental analysis, IR, 1H NMR and 13C NMR. Its critical micelle concentration(0.105 mmol/L) and γcmc(31.0 mN/m) were determined. The cmc value of Gemini surfactant decreased by appoximately two orders of magnitude than cmc of dodecyltrimethylammonium bromide.
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Keywords:
- Gemini surfactant,
- synthesis,
- surface activity
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