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采用化学反应法,合成了镁配合物表面活性剂:辛酰丙氨酸镁和辛酰苯丙氨酸镁的混合物。在水/油溶剂中对镁配合物表面活性剂进行了电导率、核磁共振和粘度的测试,并研究了水对其聚集性质的影响。实验结果表明:在疏水有机溶液中,由于亲水-亲油平衡,镁配合物表面活性剂形成了聚集体。少量的水促进了溶解度的增加及聚集物的形成。通过增加水的含量,发现了在水-正己醇或水-环己醇等的混合溶液中,聚集体的结构发生了从逆胶束到双连续微乳液结构的转变。镁离子与配体之间强的相互作用主要反映在镁配合物表面活性剂的聚集行为特性上。
Using the chemical reaction method, a magnesium complex surfactant was synthesized: a mixture of magnesium octanoate and magnesium octanoate. Magnesium complex surfactants were tested for conductivity, NMR and viscosity in water / oil solvents and the effect of water on their aggregation properties was investigated. The experimental results show that, in the hydrophobic organic solution, due to the hydrophilic-lipophilic balance, the magnesium complex surfactant forms aggregates. Small amounts of water promote increased solubility and aggregate formation. By increasing the content of water, it was found that the structure of aggregates changed from reverse micelle to bicontinuous microemulsion structure in the mixed solution of water - n - hexanol or water - cyclohexanol. The strong interaction between magnesium ions and the ligand is mainly reflected in the aggregation behavior of the magnesium complex surfactant.