We have measured the mutual diffusion coefficient and static light scattering intensity at small angle of a water-in-oil microemulsion at low (0.005–0.04) minor component volume fraction. The system studied was AOT/water/decane at 25 °C. We found a linear dependence on volume fraction for both quantities, with virial coefficients of −17 and −11, respectively, for the static structure factor and mutual diffusion coefficient. Using available expressions for these coefficients as a function of the parameters of a model potential consisting of an attractive square well and a hard core, these results can be shown to be in agreement with those previously obtained by neutron scattering.
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Kim et al. (1986) studied this question.
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