In-situ characterization of the polypyrrole films by EQCM and CER techniques

A novel setup for the investigation of ion moving processes occurring in polymer films is proposed. The special crystal holder capsule was created to include EQCM (Electrochemical Quartz Crystal Microbalance) into CER (Contact Electric Resistance) equipment and provide its reliable operation. The dependence of the resistance and the mass change of the polypyrrole films on the polarisation potential in potassium iodide aqueous solutions were investigated combining the EQCM and CER techniques. The CER method reinforced with the EQCM technique gives us a helpful tool for the better understanding of the polymeric films preparation processes with well-defined physical and chemical properties.