Citation

Yilu Guo, and Peiyi Wu. FT-IR Spectroscopic Study of the Structure of Sodium Bis(2-ethylhexyl) Sulfosuccinate Reversed Micelles in Apolar Solution. Acta Chim. Sinica 2008, 66, 1758-1762.

Abstract

The state of sodium bis(2-ethylhexyl) sulfosuccinate (AOT) reversed micelles has been investi-gated by Fourier transform infrared spectroscopy with an attenuated total reflection (ATR) accessory. 2D correlation spectroscopy revealed that a process of AOT molecules transforming from trans conformation into gauche conformation exists during heating. The quantitative analysis of the C=O stretching vibration band shows that before 38 ℃, the gauche conformation transformed into the trans conformation, and after 38 ℃, the trans conformation transformed into the gauche conformation instead. The reversed micelles have the maximum size and lowest energy at the temperature of 38 ℃.