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用微量量热法研究了丁二酸二异辛酯磺酸钠(AOT)在N,N-二甲基甲酰胺(DMF)/长链醇(正戊醇、正己醇、正庚醇、正辛醇)体系中的临界胶束浓度(CMC)和热力学函数(△Hmθ,△G mθ和△Smθ).并分析讨论了醇的浓度、醇中的碳原子数及温度与CMC及热力学参数之间的关系.结果表明,在AOT/长链醇/DMF体系中,当醇中的碳原子数相同且醇的浓度相同时,CMC,△H mθ,△Smθ随温度的升高而增大,而·G mθ随温度的升高而降低;当温度相同且醇中的碳原子数相同时,CMC,△Hmθ,△G mθ和△Smθ随醇浓度的增加都降低;而当温度相同且醇的浓度相同时,CMC,△H mθ,△G mθ和△Smθ随醇中碳原子数的增加都降低.
The effect of AOT on the formation of N, N-dimethylformamide (DMF) / long chain alcohols (n-pentanol, n-hexanol, Octanol) and the thermodynamic functions (△ Hmθ, △ G mθ and △ Smθ). The concentration of alcohol, the number of carbon atoms in the alcohol, the temperature and the CMC and the thermodynamic parameters The results showed that CMC, △ Hmθ, △ Smθ increased with the increase of temperature when the number of carbon atoms in alcohol was the same and the alcohol concentration was the same in AOT / long chain alcohol / DMF system, · G mθ decreased with increasing temperature; CMC, △ Hmθ, △ G mθ and △ Smθ decreased with the increase of alcohol concentration when the temperature was the same and the number of carbon atoms in the alcohol was the same; CMC, △ H mθ, △ G mθ and △ Smθ all decreased with the increase of carbon number in the alcohol.