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    Synthesis and Characterization of Nanostructured Polyaniline Thin Films with Superhydrophobic Properties

    Year: 2019

    Journal: Coatings, Volume 9, NOV

    Authors: Hamid, Zeinab Abdel; Gomaa, Mona Hasan; Rehim, Sayed S. Abdel; Hamid, Maamoun Abdel; Ibrahim, Ahmed

    Keywords: conducting polymers; polyaniline (PANI); hydrophobic; superhydrophobic; nanostructures; hierarchical nanostructured; electrochemical polymerization; cyclic voltammetry (CV)

    Polyaniline (PANI) thin films incorporated with TiO2 or ZnO nanoparticles were synthesized via an electrochemical polymerization technique. Cyclic voltammetry (CV) was used to synthesize PANI from a strongly acidic medium (0.5 M H2SO4). The effects of different deposition cycles on the morphology, thickness, color, and properties of electrodeposited PANI thin films nanocomposites were investigated. Furthermore, the effects of the nanoparticles concentration on the morphology and water contact angle (CA) of the produced coating were investigated. Field-emission scanning electron microscopy (FE-SEM) and high-resolution transmission electron microscopy (HR-TEM) were used to investigate the morphological structure. X-ray photoelectron spectroscopy (XPS) was used to study the surface composition of the formed film. The results reveal that the CA of the prepared coating reached 146 degrees. A granular morphology of PANI with a moderate concentration of nanoparticles was obtained. In addition, XPS analysis confirmed the incorporation of the oxide nanoparticles in the matrix.
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