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

Abstract

Studied was the collective diffusion coeff. (Dc) of water-in-oil nanoemulsions (L2 phase) stabilized by AOT and dispersed in n-decane oils by dynamic light scattering (DLS). At const. water concn. the oil concn. was varied and there is clear evidence for a changing collective diffusion coeff. of the droplets in AOT nanoemulsion. The collective diffusion coeff. in AOT nanoemulsions was studied from relaxation investigations with dynamic light scattering. Also, the collective diffusion coeff. (Dc) of droplets with addn. TBAC to the droplets of AOT nanoemulsion was studied. The results are discussed using structural investigations with small-angle x-ray scattering. The formation of non-spherical aggregates at low concn. of droplets can describe the behavior of the collective diffusion coeff. at AOT nanoemulsion. [on SciFinder(R)]