Enhancement of the solubilization capacity of water in Triton X-100/cyclohexane/water system by compressed gases

Chemistry : a European Journal
Dong ShenZhimin Liu

Abstract

The effect of compressed CO2 and ethylene on the properties of Triton X-100/cyclohexane/water systems was studied at different temperatures and pressures. Surprisingly, it was discovered that the compressed gases had the functions of co-surfactants. At suitable pressures, the water-to-surfactant molar ratio (W0) was enhanced significantly by the dissolution of the gas in the solution. The microenvironment in the reverse micelles was investigated by UV-visible spectroscopy by using methyl orange (MO) as a probe. The influence of n-hexane, Na2CO3, NaHCO3, H2C2O4, and CaCl2 at various concentrations on the solubilization of water in the absence of compressed gases was also investigated in order to obtain some information about the mechanism of the interesting phenomenon. This new route to stabilize reverse micelles may have potential applications to other similar systems. Moreover, the results of this work provide some useful information to get insight into the mechanism of co-surfactants, because a conventional co-surfactant usually contains both polar group and hydrocarbon chain, and it is very difficult to clarify the functions these two groups, while the gases used in this work are small nonpolar molecules, which solely have t...Continue Reading

Citations

Oct 22, 2011·International Journal of Molecular Sciences·Rica BoscencuRadu Socoteanu
Aug 10, 2006·Chemistry : a European Journal·Luis García-Río, Pablo Hervella
Nov 21, 2008·Angewandte Chemie·Jianling ZhangMinqiang Hou
Dec 10, 2009·Chemistry : a European Journal·Wei LiJianping Ye
Dec 17, 2005·Chemistry : a European Journal·Xiaoying FengDong Shen
Jan 15, 2014·Physical Chemistry Chemical Physics : PCCP·Wei LiBuxing Han
Oct 7, 2014·Chemical Communications : Chem Comm·Chengcheng LiuGuang Mo
Dec 4, 2008·Langmuir : the ACS Journal of Surfaces and Colloids·Wei LiYueju Zhao
Jul 24, 2008·Langmuir : the ACS Journal of Surfaces and Colloids·Yueju ZhaoGuanying Yang
Sep 15, 2020·The Journal of Physical Chemistry. B·Markus M HoffmannGerd Buntkowsky

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