The Modeling and Study of Depletion Interaction at mixture of C12E5 Microemulsion with Polyethylene Glycol Polymer


he photon correlation spectroscopy and small-angle X-ray scattering is used for study the mixture of C12E5 microemulsion with PEG in order to determine structure and dynamic of the system. Photon correlation spectroscopy experiment showed an exponential relaxation for pure C12E5 microemulsion that come from Brownian motion of oil nano-droplets in water. The shape of the relaxation changed with increasing of PEG concentration in the C12E5 microemulsion, (relaxation becomes non-exponential with the increase of PEG), which demonstrates an increase of cooperatively in the C12E5 microemulsion. The SAXS experiment was used to study the structure of the system, and a model consists of a mixture of core-shell spheres with an Asakura-Oosawa interaction was applied to analyze data.

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S. Sharifi, M. Amirkhani and O. Marti, "The Modeling and Study of Depletion Interaction at mixture of C12E5 Microemulsion with Polyethylene Glycol Polymer," Soft Nanoscience Letters, Vol. 2 No. 4, 2012, pp. 71-76. doi: 10.4236/snl.2012.24013.

Conflicts of Interest

The authors declare no conflicts of interest.


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