关键词: 季铵盐, 双子表面活性剂, 氮杂环, 表面活性, 杀菌活性

With pyridine and 1-bromooctane as raw materials, intermediate α-octyl pyridine was prepared. The intermediate reacted with 1,4-dibromobutane or 1,6-dibromohexane to afford two kinds of bisquaternary surfactants with nitrogen heterocyclic ring. The structures of these compounds wereidentified by qualitative experiments and spectral means. At the same time, thesurface activity and bactericidal activity of the two surfactants were determined. The results show that the two kinds of surfactants both have ability of decreasing the surface tension of water and bactericidal ability to some extent.

Key words: quaternary ammonium salt, gemini surfactant, nitrogen heterocyclic ring, surface activity, bactericidal activity