Accéder directement au contenu Accéder directement à la navigation
Article dans une revue

Investigation of polycarbazoles thin films prepared by electrochemical oxidation of 3- and 9-substituted carbazoles

Abstract : 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.
Type de document :
Article dans une revue
Domaine :
Liste complète des métadonnées

https://hal.archives-ouvertes.fr/hal-03396114
Contributeur : Bernard Debray Connectez-vous pour contacter le contributeur
Soumis le : vendredi 22 octobre 2021 - 19:01:06
Dernière modification le : mardi 26 octobre 2021 - 09:13:32

Fichier

POC-Contal-Revised Manuscript....
Fichiers produits par l'(les) auteur(s)

Identifiants

Collections

Citation

Emmanuel Contal, Sophie Lakard, Frédéric Dumur, Boris Lakard. Investigation of polycarbazoles thin films prepared by electrochemical oxidation of 3- and 9-substituted carbazoles. Progress in Organic Coatings, Elsevier, 2022, 162, pp.106563. ⟨10.1016/j.porgcoat.2021.106563⟩. ⟨hal-03396114⟩

Partager

Métriques

Consultations de la notice

76

Téléchargements de fichiers

34