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Conductive Polymer Porous Film with Tunable Wettability and Adhesion
Yuqi Teng1, Yuqi Zhang2, Liping Heng3
1School of Chemical & Environmental Engineering, China University of Mining & Technology, Beijing 100083, China. tengwentao@yeah.net.
Abstract:
A conductive polymer porous film with tunable wettability and adhesion was fabricated by the chloroform solution of poly(3-hexylthiophene) (P3HT) and [6,6]-phenyl-C61-butyricacid-methyl-ester (PCBM) via the freeze drying method. The porous film could be obtained from the solution of 0.8 wt%, whose pore diameters ranged from 50 nm to 500 nm. The hydrophobic porous surface with a water contact angle (CA) of 144.7° could be transferred into a hydrophilic surface with CA of 25° by applying a voltage. The water adhesive force on the porous film increased with the increase of the external voltage. The electro-controllable wettability and adhesion of the porous film have potential application in manipulating liquid collection and transportation.
