title: Impedance and morphology of hydroxy- and chloro-functionalized poly(3,4-propylenedioxythiophene) nanostructures.
abstract: The new 3,4-propylenedioxythiophenes (ProDOT) bearing hydroxy- or chloro-functionalized side chains of varying length and polarity were synthesized and electropolymerized on single carbon fiber microelectrode (SCFME) using cyclo-voltammetry. Electrochemical impedance spectroscopy (EIS) revealed highest capacitance values for the hydroxy-functionalized Poly 5 carrying a side chain of medium length. The EIS data were fitted with an equivalent electrical circuit giving a good correlation. AFM analysis of the topography showed higher roughness values for Poly 5 than for the two other polymers bearing longer side chains. Due to their reactive end groups the polymers should be useful for post-polymerization functionalization of the electrode surface.
authors: Department of Chemistry and Polymer Science and Technology, Istanbul Technical University, Maslak 34469, Istanbul, Turkey.
authors: Fatma G
authors: FG
authors: Guler
authors: Hans-Detlev
authors: HD
authors: Gilsing
authors: Burkhard
authors: B
authors: Schulz
authors: A Sezai
authors: AS
authors: Sarac