Influence of synthesis conditions on the morphology of perchlorate doped polyfuran films

Polyfuran films doped with perchlorate anions (PFu/ClO4) were studied by sc anning and transmission electron microscopies under different synthesis con ditions. However, an electropolymerization overpotential equal to at least 2.1 V was needed to obtain stable PFu/ClO4 films. In the synthesis conditio ns analysed, the film growth face presented an ordered nodular structure or iented 45 degrees with respect to the lengthwise axis of the electrode. The nodule size and film rugosity were affected by the ratios between furan an d NaClO4 concentrations. When the furan concentration was double that of pe rchlorate, the films were less rough and more homogeneous. (C) 2000 Society of Chemical Industry.