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Electric conductivity near the percolation transition of a nonionic water-in-oil microemulsion

Author

Listed:
  • Weigert, Stefan
  • Eicke, Hans-Friedrich
  • Meier, Wolfgang

Abstract

The electric conductivity of a nonionic water-in-oil microemulsion has been measured in the presence of small amounts of carrier electrolyte. Two distinct regimes can be distinguished: the conductivity increases linearly for small nanodroplet concentration, while it decreases above a critical value. The qualitative change occurs close to a concentration where the system is known to have formed a system-spanning nonconducting cluster of nanodroplets. This behaviour of the conductivity is shown to agree well with predictions of percolation theory for aggregating charged nanodroplets.

Suggested Citation

  • Weigert, Stefan & Eicke, Hans-Friedrich & Meier, Wolfgang, 1997. "Electric conductivity near the percolation transition of a nonionic water-in-oil microemulsion," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 242(1), pages 95-103.
    • Handle: RePEc:eee:phsmap:v:242:y:1997:i:1:p:95-103
    DOI: 10.1016/S0378-4371(97)00187-8
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