Investigation of polycarbazoles thin films prepared by electrochemical oxidation of 3- and 9-substituted carbazoles
| Autor: | Sophie Lakard, Emmanuel Contal, Frédéric Dumur, Boris Lakard |
|---|---|
| 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), Institut de Chimie Radicalaire (ICR), Aix Marseille Université (AMU)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS) |
| Rok vydání: | 2022 |
| Předmět: |
Working electrode
Materials science General Chemical Engineering Conducting polymers 02 engineering and technology 010402 general chemistry Electrochemistry 01 natural sciences chemistry.chemical_compound Carbazoles Reactivity Polymer chemistry Materials Chemistry [CHIM]Chemical Sciences Acetonitrile chemistry.chemical_classification Conductive polymer Carbazole Organic Chemistry Thin solid films Polymer 021001 nanoscience & nanotechnology 0104 chemical sciences Surfaces Coatings and Films Monomer chemistry Electrochromism 0210 nano-technology |
| Zdroj: | Progress in Organic Coatings Progress in Organic Coatings, 2022, 162, pp.106563. ⟨10.1016/j.porgcoat.2021.106563⟩ Progress in Organic Coatings, Elsevier, 2022, 162, pp.106563. ⟨10.1016/j.porgcoat.2021.106563⟩ |
| ISSN: | 0300-9440 |
| Popis: | International audience; Conducting polymers such as polycarbazole and its derivatives have attracted much attention due to their remarkable electrical and optical properties. To prepare polycarbazole derivatives, a variety of substituents can be added to the nitrogen atom of the carbazole monomers or to their 3- and 6-positions. In the present study, carbazole monomers bearing hydrogen, methyl or benzyl group at the N-position and styryl or (naphthalen-1- or -2-yl)vinyl substituents at the 3-position were synthesized. Then, the electro-oxidation of the different carbazole derivatives was carried out in acetonitrile with potentiodynamic and potentiostatic electrochemical methods. Although all monomers were successfully electrochemically oxidized, leading to the formation of polymer films on the working electrode surface, the electrochemical behavior, electrochromic properties, morphology, thickness, and roughness of the films varied greatly depending on the nature of the substituents. Among all the polycarbazole films obtained, those prepared from monomers unsubstituted at 9-position appeared to be the most promising due to their high electroactivity, electrochromism, good adhesion to the substrate and homogeneous structure. |
| Databáze: | OpenAIRE |
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