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酰胺型Gemini表面活性剂的合成与性能

Fine Chemicals(2009)

Cited 21|Views10
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Abstract
以十二胺为原料经加成、酰胺化等均相反应合成了酰胺型羧酸盐Gemini表面活性剂N,N′-双十二烷基己二酰胺丙酸钠(DLAP-12),考察了反应温度、反应时间、投料比等因素对酰胺化反应的影响。实验得到的最佳工艺条件为:n(N-十二烷基-β-氨基丙酸甲酯)∶n(己二酰氯)=2.3∶1,反应温度35℃,反应时间5h,在该条件下,己二酰氯转化率为81.65%。性能测定结果表明,25℃时,表面张力30.2mN/m,临界胶束浓度4.2×10-5mol/L,润湿力73.9s,罗氏泡沫高度164mm。
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Key words
adipoyl dichloride,N'-dilauroyladipylamine propionate acid,dodecylamine,amidation,sodium N,Gemini surfactant
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