Polysulfone processing data

The impedance plots for the composite HR95 membrane are shown in Figure 2.3, where two different contributions associated with the membrane (m) and the electrolyte solution between the electrodes and the membrane surfaces (e) can clearly be observed. To check this assumption, the impedance data obtained with the electrolyte alone, without any membrane in the measuring cell, are also plotted in Figure 2.3. As can be observed, a parallel RC circuit with only a relaxation process and a maximum frequency of around 10 Hz (similar to that in Figure 2.1) was obtained for the electrolyte solution measured alone (R C. The circuit associated with the composite polyamide/polysulfone HR95 membrane shows two subcircuits. 

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