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Electropolymerized polythiophene layer extracted from the interface between two immiscible electrolyte solutions: Current-time analysis

Tipo de material: TextoTextoSeries ; Journal of Electroanalytical Chemistry, 594(1), p.59-68, 2006Trabajos contenidos:
  • Vignali, M
  • Edwards, R.A.H
  • Serantoni, M
  • Cunnane, V.J
Tema(s): Recursos en línea: Resumen: Polythiophene was formed by electropolymerization at the interface between two immiscible electrolyte solutions, using terthiophene as the starting monomer in 1,2-dichloroethane. The water phase contained a redox couple to allow removal of electrons through the interface. For the first time, a layer of polythiophene was produced which was strong enough to extract. The mechanism of electropolymerization was found to be similar to that in the electrodeposition of polythiophene on metals: progressive nucleation and 2D growth precedes 3D growth, ascribed to precipitation of oligomers from solution. The polymer extracted was found to be partially oxidized (irreversibly doped)to a conductive state, and stable in air.
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Polythiophene was formed by electropolymerization at the interface between two immiscible electrolyte solutions, using terthiophene as the starting monomer in 1,2-dichloroethane. The water phase contained a redox couple to allow removal of electrons through the interface. For the first time, a layer of polythiophene was produced which was strong enough to extract. The mechanism of electropolymerization was found to be similar to that in the electrodeposition of polythiophene on metals: progressive nucleation and 2D growth precedes 3D growth, ascribed to precipitation of oligomers from solution. The polymer extracted was found to be partially oxidized (irreversibly doped)to a conductive state, and stable in air.

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