Langmuir-Blodgett films of an alkoxy derivative of poly(3,4-ethylenedioxythiophene)

The amphiphilic character of a conducting polymer obtained by chemical polymerization of a C14 alkylated 3,4-ethylenedioxythiophene methanol monomer allowed the formation of a stable monolayer at the air-water interface. Several monolayers were transferred on a solid substrate and a lamellar well-organized structure was obtained. The doping was carried out in gas phase by NO2 and monitored by ultraviolet-visible spectroscopy and quartz crystal microbalance. The doped material showed a good conductivity as compared to other Langmuir-Blodgett films of conducting molecules.