How To Choose Polyelectrolytes for Aqueous Dispersions of Conducting PEDOT Complexes

Anna I. Hofmann (1, 2) , Dimitrios Katsigiannopoulos (2, 1) , Muhammad Mumtaz (2, 1) , Ioannis Petsagkourakis (2, 1) , Gilles Pecastaings (2, 1) , Guillaume Fleury (2, 1) , Christophe Schatz (2) , Eleni Pavlopoulou (2, 1) , Cyril Brochon (2, 1) , Georges Hadziioannou (2, 1) , Eric Cloutet (2, 1)

1 Team 4 LCPO : Polymer Materials for Electronic, Energy, Information and Communication Technologies
2 LCPO - Laboratoire de Chimie des Polymères Organiques

By using different polysaccharide and polysulfonylimide type polyelectrolytes for the synthesis of aq. PEDOT:polyelectrolyte dispersions, the influence of the polyelectrolyte backbone and of the anionic groups on the properties of the resulting PEDOT:polyelectrolyte complex has been studied. The obtained PEDOT:polyelectrolyte systems were characterized regarding the doping and the morphol. of the complexes in dispersion as well as regarding the optoelectronic properties and the morphol. of the dry PEDOT:polyelectrolyte films. Polyelectrolytes with high molar mass, a rigid backbone, and strongly acidic functionalities resulted in highly conducting PEDOT:polyelectrolyte films, while polyelectrolytes with flexible backbones and weakly acidic groups resulted in insulating PEDOT:polyelectrolyte systems. These findings could help to develop a palette of new PEDOT:polyelectrolyte systems, which correspond better to the specific requirements of different applications.

Mots clés: polyelectrolytes; optoelectronic

Domaines: Polymères

Anna I. Hofmann, Dimitrios Katsigiannopoulos, Muhammad Mumtaz, Ioannis Petsagkourakis, Gilles Pecastaings, et al.. How To Choose Polyelectrolytes for Aqueous Dispersions of Conducting PEDOT Complexes. Macromolecules, 2017, 50 (5), pp.1959-1969. ⟨10.1021/acs.macromol.6b02504⟩. ⟨hal-01473920⟩