引用本文:
郭祥峰, 陈华群, 贾丽华. 甘氨酸酯衍生物双子季铵盐表面活性剂[J]. 应用化学,
2002, 19(7): 713-714.
Citation: GUO Xiang-Feng, CHEN Hua-Qun, JIA Li-Hua. Gemini Surfactants Based on Glycine esters[J]. Chinese Journal of Applied Chemistry, 2002, 19(7): 713-714.
Citation: GUO Xiang-Feng, CHEN Hua-Qun, JIA Li-Hua. Gemini Surfactants Based on Glycine esters[J]. Chinese Journal of Applied Chemistry, 2002, 19(7): 713-714.
甘氨酸酯衍生物双子季铵盐表面活性剂
English
Gemini Surfactants Based on Glycine esters
Abstract:
Four gemini cationic surfactants were synthesized by N-alkylation reaction of N,N-dimethyl dodecyl amine with 1,2-ethanediol dichloracetate, 1,3-propanediol dichloracetate, 1,4-butanediol dichloracetate and 1,6-hexanediol dichloracetate, respectively. The molecular structures of the surfactants were characterized by IR and 1H NMR spectra. The cmc values of gemini cationic surfactants SAA1, SAA2, SAA3, SAA4 were 0.91, 0.34, 0.35 and 0.78 mmol/L, respectively, much lower than that of the corresponding conventional single tailed surfactant[C12H25N(CH3)2CH2-COOC2H5]+Cl-, whose cmc is 8.9 mmol/L. Their foaming capacity was 162, 171, 160, 168 mm, respectively, higher than 157 mm for[C12H25N(CH3)2CH2COOC2H5]+Cl-.
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Key words:
- quaternary ammonium salt
- / gemini surfactant
- / synthesis
- / surface activity
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