Electrical conductivity of reverse micelles in supercritical carbon dioxide

Autor: Blattner, Christian, Bittner, Jürgen, Schmeer, Georg, Kunz, Werner
Zdroj: Physical Chemistry Chemical Physics (PCCP); May 1, 2002, Vol. 4 Issue: 10 p1921-1927, 7p
Abstrakt: The conductivity of water/ClPFPE-NH4/scCO2 systems is studied over a wide range of pressures and droplet volume fractions at 35 °C and at two constant water-to-surfactant molar ratios, W0 = 10.3 and 18.7, respectively. The results are interpreted according to three different models for low, intermediate and high concentrations of water and surfactant. Information is obtained about a possible bulk-like behaviour of water, about the approximate size of the micelles, about micellar percolation, and about changes of CO2–water droplet interactions with pressure.
Databáze: Supplemental Index