Journal of Polymer Science Part A Polymer Chemistry · 1992 · 30 citations · 31 references
EngineeringOrganic ElectronicsRedox PolymersResponsive PolymersOrganic ChemistryChemistryPolymersConducting PolymerOrganic ElectrochemistryOxidation PotentialsHybrid MaterialsCyclic VoltammetryPolymer ChemistryBt UnitsMaterials ScienceMolecular ElectrochemistryOrganic SemiconductorUv/visible SpectroscopyElectrochemistryPrepared Polymer FilmsPolymer SciencePolymer Characterization
Abstract Several polymers have been prepared by electropolymerization of mixtures of pyrrole (PY) and 2,2′‐bithiophene (BT). Cyclic voltammetry on prepared polymer films shows three anodic oxidation peaks, two of which match the oxidation potentials of homopolymeric PY and BT, and a third which is intermediate. UV/visible spectroscopy displays a unique spectrum for each of the reduced and oxidized forms of these polymers. Nernstian plots from UV/visible data exhibit three well‐defined redox couples in polymer films produced at 1.3 V. Overall, the data strongly support the formation of a copolymer, consisting of three distinct oxidizable units. Two of these can be attributed to short blocks of either PY or BT, and a third to random and alternate groupings of PY and BT. The polymers produced are electrically conductive, but the conductivity drops rapidly as BT units are introduced into a homopolymer of PY. © 1992 John Wiley & Sons, Inc.
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Gregg P. Kittlesen, Henry S. White, Mark S. Wrighton · Journal of the American Chemical Society · 1984 · 378 citations