Electrical conductivity of reverse micelles in supercritical carbon dioxide

The cond. of water/ClPFPE-NH4/scCO2 systems is studied over a wide range of pressures and droplet vol. fractions at 35° and at 2 const. water-to-surfactant molar ratios, W0 = 10.3 and 18.7, resp. The results are interpreted according to 3 different models for low, intermediate, and high concns. of water and surfactant. Information is obtained about a possible bulk-like behavior of water, about the approx. size of the micelles, about micellar percolation, and about changes of CO2-water droplet interactions with pressure.