The Behavıor Of Ionıc Conductıvıty In Polymer Electrolytes Contaınıng Ionıc Salt Polyimide membranes, forming by adding ionic liquids in two different mole ratios to the polyimide-based polymer matrices, are produced as an alternative for commonly used perflorosülfonik acid (Nafion) membranes. High proton conductivity has been achieved as a result of sulfuric acid-H2SO4 doping process on polymer electrolytes used high temperature fuel cells in the literature. Therefore, the increment of the ionic conductivity of our samples has been obtained by doping acid. Acid-doped and undoped two types of membrane have been obtained. The frequency, thickness and temperature dependence of ac conductivity and dielectric constant for all the samples were investigated.
