紫外-可见光谱确定甲酰胺/AEO3/正辛烷非水微乳微观结构研究

Study on the Microstructure of Formamide/ Tri(ethyleneglycol)monododecyl Ether /n-Octane by UV-Visible Spectroscopy

摘要:

研究了以甲酰胺为极性相，正辛烷为油相，以脂肪醇聚氧乙烯（3）醚（AEO3）为表面活性剂形成的非水微乳液相行为。以甲基蓝（MB）和甲基橙（MO）为探针，利用探针在溶液、胶束、反胶束等不同极性环境下吸收峰位置的变化，通过紫外-可见光吸收光谱研究了该非水微乳液相区的微观结构，确定了该体系可以形成以甲酰胺为分散相，正辛烷为连续相的油连续型微乳液。

Abstract:

Oil-continuous microemulsion phase behavior formed by formamide (polar phase), n-octane (oil phase), tri(ethyleneglycol)monododecyl ether (AEO3) was investigated. Using the methyl orange (MO) and methylene blue (MB) as absorption probes, the microstructure of nonaqueous microemulsions was probed with UV-vis spectroscopy measurements as the absorption maximum is changed with the polarities of the pure solvents, micelles and reverse-micelles systems. The results indicated that an n-octane continuous structure with formamide nano-droplets formed in formamide/ AEO3 /n-octane system.