关键词: 酰胺键, 吡啶双子表面活性剂, 合成, 性能

Abstract: Pyridine Gemini surfactant containing amide spacer was synthesized using ethylenediamine, 1-bromoalkane, chloroacetyl chloride and pyridine as raw materials by halogenation amidation reaction and quaterisation. The target product synthesis condition is as following:ultrasonic for assisting reaction was 40kHz and 100W, reaction temperature was 60℃, and reaction time was 5h. The target products were characterized by FTIR, ¹H NMR and ¹³C NMR. The major performance of target products was investigated, including critical micelle concentration and bactericidal property. The results show that the cmc of target product is 1.4×10^-2～2.3×10^-5mol/L, and has a good emulsification and stability. The antibacterial effect of surfactant with eight carbon alkyl chains for escherichia coli and bacillus subtilis is the best.

Key words: amide bond, pyridine Gemini surfactants, synthesis, properties