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利用葡萄糖内酯和不同碳链的系列脂肪胺反应生成糖酰胺,再经三氧化硫硫酸化、碱中和后合成了糖基硫酸酯钠阴离子表面活性剂,利用电喷雾质谱(ESI-MS)对所得产品进行了表征.糖酰胺反应的溶剂为乙醇,反应温度为80℃,n(糖内酯)∶n(胺)为1∶(1.1～1.3).糖内酯的酰化反应收率均在90%以上,用三氧化硫硫酸酯化并经氢氧化钠中和后,经过提纯所得硫酸盐的收率在70%以上.糖基硫酸钠表面活性剂的CMC分别为31.4,2.89和0.05 g/L,γCMC分别为35.5,28.71和35.2 mN/m.
Glucosamine was synthesized by the reaction of a series of aliphatic amines with different carbon chains with glucoractone, and then sulfated with sulfur trioxide. After sodium hydroxide was neutralized, the glycosyl sulfate sodium anionic surfactant was synthesized. The structure of the product was determined by electrospray ionization mass spectrometry (ESI-MS) The resulting product was characterized by ethanolysis of sugar amide, reaction temperature 80 ℃, n (lactone): n (amine) 1: (1.1 ~ 1.3) Were more than 90%, with sulfur trioxide after sulfuric acid esterification and neutralization by sodium hydroxide, after purification yield of more than 70% of the sulfate sodium glycosyl sulfate surfactant were 31.4,2.89 and 0.05 g / L, and γCMC were 35.5, 28.71 and 35.2 mN / m, respectively.