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化学学报
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化学学报 ›› 2006, Vol. 64 ›› Issue (18): 1925-1928. 上一篇    下一篇

研究简报

系列阳离子双子表面活性剂的合成及其表面活性的研究

孙玉海1,2, 董宏伟1,2, 冯玉军*,1, 陈志1,2   

  1. (1中国科学院成都有机化学研究所 成都 610041)
    (2中国科学院研究生院 北京 100039)
  • 投稿日期:2006-03-10 修回日期:2006-05-19 发布日期:2006-09-28
  • 通讯作者: 冯玉军

Synthesis and Surface Activity Properties of a Series of Cationic Gemini Surfactants

(1 Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041)
(2 Graduate University of Chinese Academy of Sciences, Beijing 100039)   

  1. SUN Yu-Hai1,2; DONG Hong-Wei1,2; FENG Yu-Jun*,1; CHEN Zhi1,2
  • Received:2006-03-10 Revised:2006-05-19 Published:2006-09-28

PDF

1034

被引次数

116

合成了一系列新型的阳离子双子表面活性剂二溴化-N,N'-二(二甲基烷基)乙二铵(12-2-m', m'＝4, 8, 12, 16), 初步研究了其水溶液的表面活性和电导率性质. 结果表明, 此类表面活性剂的表面活性与所含疏水尾基的碳数密切相关.

关键词: 不对称双子表面活性剂, 阳离子表面活性剂, 表面张力, 临界胶束浓度, 电导率

Preliminary results on the synthesis and aqueous solution surface activity properties of a series of cationic gemini surfactants, N,N'-bis(dimethylalkyl)ethylammonium dibromide, 12-2-m' (m'＝4, 8, 12, 16), were reported. It was found that the surface tension and critical micellar concentration (CMC) are closely related to total carbon numbers in their hydrophobic chains.

Key words: dissymmetric gemini surfactant, cationic surfactant, surface tension, critical micellar concentration, conductivity