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中国科学院大学学报 ›› 2004, Vol. 21 ›› Issue (3): 340-344.DOI: 10.7523/j.issn.2095-6134.2004.3.009

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N,N′-双棕榈酰基乙二胺二乙酸钠的合成和表面活性

廖文胜, 毕只初   

  1. 中国科学院化学研究所胶体与界面科学重点实验室, 北京 100080
  • 收稿日期:2003-06-09 修回日期:2003-08-12 发布日期:2004-05-10
  • 基金资助:

    国家重点基础研究发展规划项目 (G1999022506)资助

Synthesis and Surface Properties of Anionic Gemini Surfactant of N, N′-Dipalmitoyl-Ethylenediamine-Diacetic Acid, Sodium Salt

LIAO WenSheng, BI ZhiChu   

  1. Key Laboratory of Colloid and Interface Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China
  • Received:2003-06-09 Revised:2003-08-12 Published:2004-05-10

摘要:

合成了新型阴离子Gemini表面活性剂N,N′双棕榈酰基乙二胺二乙酸钠,并以元素分析、1HNMR对合成的表面活性剂进行了表征;用表面张力法确定了其临界胶束浓度(cmc);对表面活性剂在硅胶上的润湿性进行了实验,发现其润湿性远优于十二烷基苯磺酸钠。

关键词: 阴离子Gemini表面活性剂, 临界胶束浓度, 表面性质

Abstract:

Anionic Gemini surfactant, N, N′ Dipalmitoyl ethylenediamine diacetic Acid, sodium salt, is synthesized and characterized by elemental analysis and 1HNMR. The critical micelle concentration (cmc) has been determined by means of surface tension measurements. Wettability of the surfactant aqueous solution on silica gel is far better than that of dodecylbenzenesulfonic acid, sodium salt.

Key words: anionic Gemini surfactant, critical micelle concentration, surface properties

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