COMPLEX ELECTRICAL-CONDUCTIVITY OF WATER-IN-OIL MICROEMULSIONS

The behavior of frequency-dependent electrical conductivity and permit tivity dose to the percolation threshold of a two-component system is interpreted in terms of formation of polydispersed fractal clusters. W e derive an explicit form of the scaling function for the complex cond uctivity and its limit of validity. The measurements performed on two water-in-oil microemulsion systems are very well accounted for and sho w the expected scaling behavior. Stretched exponential behavior of the polarization correlation function is also obtained.