Superoleophobic/superhydrophobic PEDOP conducting copolymers with dual-responsivity by voltage and ion exchange

Sabri Taleb (1) , Thierry Darmanin (1) , Frédéric Guittard (1)

1 Surfaces & Interfaces

Bioinspired superoleophobic and superhydrophobic materials have attracted the scientific community for their large range of applications. To increase this range for example for applications in oil/water separation membranes, it is important to develop materials with switchable wettability. Here, we report the formation of materials with dual-responsivity (voltage and ion exchange) by electrochemical copolymerization of 3,4-ethylenedioxypyrrole (EDOP) derivatives with fluorinated chains and pyridinium groups. While the fluorinated chains are necessary to reach superoleophobic properties, the pyridinium groups allows to have switchable properties by counterion exchange. Here, we show the possibility to have higher contact angles with oils than with water by controlling the percentage of each monomer, after electropolymerization, polymer reduction by voltage, and ion exchange.

Domaines: Matériaux

Sabri Taleb, Thierry Darmanin, Frédéric Guittard. Superoleophobic/superhydrophobic PEDOP conducting copolymers with dual-responsivity by voltage and ion exchange. Materials Today Communications, 2016, 6, pp.1-8. ⟨10.1016/j.mtcomm.2015.11.002⟩. ⟨hal-01224741⟩