AOT/烷烃混合物中反胶束的结构和热力学稳定性
The Structure and Thermodynamic Stability of Reverse Micelles in Dry AOT/Alkane Mixtures
摘要:
蒙特卡罗模拟研究反胶束的阴离子表面活性剂,AOT钠,在非极性溶剂中提供了强有力的证据表明,在没有水的情况下,这些集群的电荷有序多面体壳。这些集群的稳定能量是如此之大,混合的熵是,相比之下,无关紧要的,我们预测,如果所有的水的水合作用可以被删除(尚未完成的钠盐),然后AOT将是不溶于非极性溶剂。
英文摘要:
Monte Carlo simulation studies of reverse micelles of an anionic surfactant, sodium AOT, in a non-polar solvent provide strong evidence that, in the absence of water, these clusters are charge ordered polyhedral shells. The stabilizing energy of these clusters is so large that the entropy of mixing is, in comparison, inconsequential and we predict that, if all waters of hydration could be removed (something not yet accomplished for the sodium salt) then AOT would be insoluble in nonpolar solvents.
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