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正丙醇与水完全互溶，但在ＡＥＯ９胶束溶液体系中，正丙醇一部分存在于水连续相中，另一部分被吸附在胶束界面，或定位于胶束的栅栏层中与ＡＥＯ９形成膜相。荧光测定表明，结合常数ＫＭＷ和正丙醇在连续相与胶束相中的分配系数ＰＭＷ随正丙醇含量的增加而呈线性增加；被吸附于胶束界面、或定位于胶束栅栏层中的正丙醇分子数，在ＡＥＯ９的一定含量下，随着正丙醇含量的增加而增加，在确定正丙醇含量下，随ＡＥＯ９浓度的增加，被吸附于胶束上正丙醇总摩尔分数也增加，但正丙醇与ＡＥＯ９分子数之比ｒ降低。
N-propanol and water are completely miscible, but in the AEO9 micellar solution system, part of n-propanol is present in the water continuous phase and the other part is adsorbed at the micellar interface or in the barrier layer of micelles to form a membrane with AEO9 phase. Fluorescence measurement showed that the partition coefficient PMW of the binding constant KMW and n-propanol in the continuous phase and the micellar phase increased linearly with the increase of the n-propanol content, adsorbed at the micelle interface or located in the micellar barrier layer The number of n-propanol molecules increased with the increase of n-propanol content at a certain content of AEO9. When the n-propanol content was determined, with the increase of AEO9 concentration, n-propanol molecules were adsorbed on the total molar fraction of n-propanol Also increased, but n-propanol and AEO9 molecular ratio r decreased.