Formation of water-in-CO(2) microemulsions with non-fluorous surfactant Ls-54 and solubilization of biomacromolecules

Chemistry : a European Journal
Juncheng LiuBaozhong Dong

Abstract

The solubility of Ls-54 surfactant in supercritical CO(2) was determined. It was found that the surfactant was highly soluble in SC CO(2) and the water-in-CO(2) microemulsions could be formed, despite it being a non-fluorous and non-siloxane nonionic surfactant. The main reasons for the high solubility and formation of the microemulsions may be that the surfactant has four CO(2)-philic groups (propylene oxide) and five hydrophilic groups (ethylene oxide) and its molecular weight are relatively low. The results of this work provide useful information for designing CO(2)-soluble non-fluorous and non-siloxane surfactants. The phase behavior of the CO(2)/Ls-54/H(2)O system, solvatochromic probe study, and the UV spectrum of lysozyme proved the existence of water domains in the SC CO(2) microemulsions. The method of synchrotron radiation small-angle X-ray scattering was used to obtain the structural information on the Ls-54 based water-in-CO(2) reverse micelles. By using the Guinier plot (ln I(q) versus q (2)) on the data sets in a defined small q range (0.022-0.040 A(-1)), the radii of the reverse micelles were obtained at different pressures and molar ratio of water to surfactant, W(0), which were in the range of 20.4-25.2 A.

References

Jul 18, 2001·Journal of the American Chemical Society·J EastoeR K Heenan
Jun 21, 1996·Science·K P JohnstonS Howdle
Mar 24, 1999·Journal of the American Chemical Society·Min JiJohn L Fulton

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Citations

Apr 19, 2011·The Journal of Supercritical Fluids·Pedro J TarafaMichael A Matthews
Mar 14, 2008·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Muhammad MoniruzzamanMasahiro Goto
Apr 29, 2006·Angewandte Chemie·Julian EastoeRobert M Enick
Mar 21, 2007·Angewandte Chemie·Jiehua LiuBuxing Han
Apr 7, 2005·Physical Chemistry Chemical Physics : PCCP·Julian Eastoe, Sarah Gold
Apr 27, 2010·Chemical Society Reviews·Jairton Dupont, Jackson D Scholten
Aug 22, 2008·Langmuir : the ACS Journal of Surfaces and Colloids·Masanobu SagisakaKatsuto Otake
Jul 20, 2007·Langmuir : the ACS Journal of Surfaces and Colloids·Masanobu SagisakaKatsuto Otake
Feb 3, 2005·Chemistry : a European Journal·Juncheng LiuYukiya Hakuta
Jun 29, 2012·Langmuir : the ACS Journal of Surfaces and Colloids·Masanobu SagisakaJulian Eastoe
Oct 31, 2012·Accounts of Chemical Research·Jianling Zhang, Buxing Han
Dec 13, 2012·The Journal of Physical Chemistry. B·Jie XuWanguo Hou
Feb 21, 2007·Langmuir : the ACS Journal of Surfaces and Colloids·Masanobu SagisakaKatsuto Otake
Jun 30, 2006·The Journal of Physical Chemistry. B·Carla W ScheerenJairton Dupont
Nov 17, 2006·Langmuir : the ACS Journal of Surfaces and Colloids·Julian EastoeDavid C Steytler
Apr 20, 2005·Langmuir : the ACS Journal of Surfaces and Colloids·Masanobu SagisakaKatsuto Otake

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