Popis: |
The percolative conduction behaviour of water-in-oil microemulsion systems containing additives (H 2 O/AOT/additive/isooctane) have been examined at different temperatures. Additives like n-propanol and gramicidin, which are known to increase membrane permeability, lower the percolation threshold temperature while cholesterol, which increases membrane rigidity, shifts the percolation threshold to a higher temperature. It has been concluded from the results that percolative conduction is also a measure of membrane permeability of the surfactant monolayer of the droplets and the hard-sphere model concept seems to be still valid at the percolation points. |