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

Soheil Sharifi, Masoud Amirkhani, Othmar Marti

Department of Physics, University of Sistan and Baluchestan, 98135-674 Zahedan, Iran.
Institut für Experimentelle Physik, Universit?t Ulm, Albert-Einstein-Allee 11 89081 Ulm, Germany.

DOI: 10.4236/snl.2012.24013                

Abstract

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.

Keywords

Nano-Droplet; SAXS; Light Scattering; Polyethyl Glycol

Conflicts of Interest

The authors declare no conflicts of interest.

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