一种松香基阴离子表面活性剂的合成与性能研究

以脱氢枞酸(DA)和6-氨基己酸为原料,经酰氯化、酰胺化和皂化等反应合成了一种松香基阴离子表面活性剂6-脱氢枞酰胺基己酸钠(R-6).首先利用二维核磁技术对脱氢枞酸的氢谱和碳谱信号进行了全面解析,并用1 H NMR和FT-IR确证了终产品的结构,进一步考查了R-6的溶解性能、表面张力和泡沫性能.研究结果表明:在室温下,...

Synthesis and Properties of a Rosin-based Anionic Surfactant

Using dehydroabietic acid(DA)and 6-aminocaproic acid as the raw materials,a rosin-based amino acid surfactant(R-6)was synthesized via reactions of chlorination,amidation and saponification reactions.The ¹H NMR and ¹³C NMR signals of dehydroabietic acid were analyzed by using 2D NMR techniques,and the structure of the final product was also confirmed by ¹H NMR and FT-IR.The solubility,surface tension and foam properties of R-6 were investigated.The results showed that at room temperature,R-6 showed excellent solubility of above 800 mmol/L in water.The critical micelle concentration(C_cmc)of the surfactant was 5.89 mmol/L,and the surface tension(γ_cmc)corresponding to C_cmc was 40.46 mN/m.With the increase of surfactant concentration,R-6 exhibited strong ability in stabilizing foams.When the concentration of R-6 solution was 10 mmol/L,the foam half-life was as high as 1966 min.