【摘要】 非离子型表面活性剂所组成的微乳液是由水,甲苯,正已醇和聚氧乙烯苯醚所构成,用加溶作用法求醇从油相转移到界面相时的吉布斯函数的变化,以及温度对它的影响.从而可得出该过程的熵和焓的变化.这些热力学性质与表面活性剂的氧乙烯基团数n呈以下关系:△G_s-i⁰=31300+396n-T·exp（4.85+0.0076n）(J·mol^-1)△H_s-i⁰=31300+396n(J·mol^-1)ln(△S_s-⁰=4.85+0.0076n更多还原

【Abstract】 The microemulsion which is formed with nonionic surfactants is a quarternary mixture made of alkyl phenol oxyethylene ethers, oil（toluene）, water and alcohol（hexanol）. This system was studied thermo-dynamically by means of dilution to determine the standard free energy of transfer from the oil phase to the interfacial region for the cosurfa-ctant. From the effects of temperature, the entropy and enthalpy values were also calculated. The relationships between the thermodynamic quan-tities and the oxyethylene unit number （n）of the surfactants were determined as follows: △G_s-i⁰=31300+396n-T.exp （4.85-0.00761n） (J.mo1^-1) △H_s-i⁰=31300+369n(J.mol^-1) ln△S（s-i）⁰=4.85+0.00761n更多还原