Superhydrophobic conducting polymers based on hydrocarbon poly(3,4-ethylenedioxyselenophene)

Océane Dunand (1) , Thierry Darmanin (2) , Frédéric Guittard (2)

1 LPMC - Laboratoire de physique de la matière condensée
2 Surfaces & Interfaces

We report the first studied example of wettability of conducting polymers based on poly(3,4-ethylenedioxyselenophene). Hydrocarbon 3,4-ethylenedioxyselenophene (C2H5 to C12H25) derivatives are synthesized and electropolymerized in propylene carbonate using lithium tetrafluoroborate (LiBF4) and lithium bistrifluoromethanesulfonimidate (LiTf2N) as electrolyte. Highly structured films are obtained from a C8H17 chain independent of the electrolyte used. Superhydrophobic properties with high adhesion are specifically reached if using a C12H25 chain and LiBF4. The surface morphology is porous and highly structured as the films consist of assemblies of nanofibrils.

Domaines: Matériaux

Océane Dunand, Thierry Darmanin, Frédéric Guittard. Superhydrophobic conducting polymers based on hydrocarbon poly(3,4-ethylenedioxyselenophene). ChemPhysChem, 2013, 14, pp.2947-2953. ⟨10.1002/cphc.201300448⟩. ⟨hal-00844158⟩