Electrodeposited Copolymer Films with Tunable Conductivity
| Autor: | Sophie Lakard, Boris Lakard, Sandrine Monney, Emmanuel Contal, Claire Magnenet |
|---|---|
| Přispěvatelé: | Univers, Transport, Interfaces, Nanostructures, Atmosphère et environnement, Molécules (UMR 6213) (UTINAM), Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC) |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Chemiresistor
Conductive polymer Materials science Dodecane Comonomer 02 engineering and technology Electrolyte Conductivity 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences surface analysis Lithium perchlorate 0104 chemical sciences chemistry.chemical_compound copolymerization chemistry Chemical engineering Copolymer electrodeposition [CHIM]Chemical Sciences conducting polymer 0210 nano-technology |
| Zdroj: | Int J Electrochem Sci Int J Electrochem Sci, 2020, 1 (4), pp.358-366. ⟨10.3390/electrochem1040023⟩ |
| Popis: | International audience; Conducting copolymer films were prepared from pyrrole (Py) and 1,12-di-(1-pyrrolyl) dodecane (DiPy) in an attempt to prepare conducting films that can be used as sensitive material of chemiresistor gas sensors. Copolymer thin films were obtained by electrochemical oxidation in a lithium perchlorate/acetonitrile electrolyte with different feed ratios of comonomers. Increasing the portion of DiPy in the comonomer mixture resulted in the formation of thinner and less rough copolymer films and to a modification of their morphology from a granular structure to a clover-like structure. In addition, copolymer films with very different conductivities were obtained by varying the comonomers ratio. Indeed, the conductivity of the copolymer containing 91% of Py was 2 × 10^5 times higher than the conductivity of the polymer containing 91% of DiPy, indicating that it is possible to tune the conductivity of the film by varying the composition of the initial comonomer mixture. |
| Databáze: | OpenAIRE |
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