Synthesis of Carboxyl-EDOT as a Versatile Addition and Additive to PEDOT:PSS

Daniele Mantione (1) , Ariana Villarroel Marquez (1) , Federico Cruciani (1) , Cyril Brochon (1) , Eric Cloutet (1) , Georges Hadziioannou (1)

1 LCPO - Laboratoire de Chimie des Polymères Organiques

Two steps synthesis of EDOT (3,4-ethylenedioxythiophene) derivate bearing a carboxylic acid group (carboxyl-EDOT) is presented. This reactive monomer has been copolymerized with EDOT to afford PEDOT copolymers. Thanks to the most common additives usually added to the PEDOT:PSS dispersion, ethylene glycol and 4-Dodecylbenzenesulfonic acid (DBSA), the carboxylic acid has been used to crosslink the material via esterification reactions. This result offers the possibility to produce a polymer network without adding any crosslinking agent. Furthermore, the short synthetic pathway of carboxyl-EDOT offers the possibility to incorporate new functionality either in EDOT monomer or in PEDOT materials with a reasonable chemical effort and background.

Mots clés: carboxyl-EDOT; PEDOT; cross-link; conducting polymers; electronic material

Domaines: Polymères

Daniele Mantione, Ariana Villarroel Marquez, Federico Cruciani, Cyril Brochon, Eric Cloutet, et al.. Synthesis of Carboxyl-EDOT as a Versatile Addition and Additive to PEDOT:PSS. ACS Macro Letters, 2019, 8 (3), pp.285-288. ⟨10.1021/acsmacrolett.8b00970⟩. ⟨hal-02107646⟩