Light Scattering and SAXS Study of AOT Microemulsion at Low Size Droplet

Soheil Sharifi, Masoud Amirkhani, Jahanbakhsh Mashaiekhy Asla, Mohamad Reza Mohammadi, Othmar Marti

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DOI: 10.4236/snl.2012.21002                

Abstract

We study collective diffusion coefficient (D_c) of Water-in-oil nanoemulsions (L₂ phase) stabilized by AOT and dispersed in n-Decane oils by dynamic light scattering (DLS). At constant water concentration we vary the oil concentration and there is clear evidence for a changing collective diffusion coefficient of the droplets in AOT nanoemuslion. The collective diffusion coefficient in AOT nanoemulsions is studied from relaxation investigations with dynamic light scattering. Also, we study the collective diffusion coefficient (D_c) of droplets with add the TBAC to the droplets of AOT nanoemulsion. We discuss the results with study structural investigations with small-angle x-ray scattering. The results of this study suggest that the formation of non-spherical aggregates at low concentration of droplets can describe the behavior of the collective diffusion coefficient at AOT nanoemulsion.

Keywords

Nano-droplet; Microemulsions; Light scattering; SAXS; Diffusion

Conflicts of Interest

The authors declare no conflicts of interest.

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