N,N′双脂肪酰基乙二胺二丙酸甲酯的合成-及性能研究

Synthesis and properties of alkanediyl-α,ω-bis (sodium N-acyl-β-alaninate)Gemini surfactants tongyan

以无水乙二胺、丙烯酸甲酯及不同的脂肪酸反应,合成了Gemini型表面活性剂双脂肪酰基乙二胺二丙酸甲酯,通过测定不同浓度溶液的表面张力和电导率,对系列Gemini型表面活性剂,即C10(癸酸)Gemini型、C12(月桂酸)Gemini型、C14(肉豆蔻酸)Gemini型、C16(棕榈酸)Gemini型的相关性能进行了表征。同时探讨了不同金属离子的加入对于Gemini型表面活性剂的表面活性的影响。

Preliminary results on the synthesis and aqueous solution surface activity properties of the gemini surfactants, N, N＇-palmitoyl ethylammonium dibromide,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.