Polyaniline (PANI) plays an important role in multiple scientific fields, including the anti-corrosion discipline; this is mostly because its conductivity can easily be tuned by adjusting its oxidation state. PANI can be produced in many ways such as electrochemical, photo-induced, and enzymatic. Many studies on the electropolymerization of heteroaromatic monomers such as aniline, pyrrole, and carbazole appear in the literature. Nowadays, surface-initiated photoinduced electron transfer-reversible addition-fragmentation chain transfer (SI-PET-RAFT) polymerization is used and preferred to form thin films owing to its simple procedure under ambient conditions and visible light. Besides, the uses of graphene oxide (GO) as an additive have increased due to its properties like chemically inertness, barrier properties, and conductivity. Thereby, this study aims to create a superior anti-corrosion and tune wettability polymer brush coating, synthesized following the SI-PET-RAFT polymerization. Thus, the monomers (i.e., aniline and carbazole), as well as GO will be electrodeposited onto the substrate (e.g., ITO, Si Wafer) forming a conductive crosslinked film. Then a polymeric solution will be added, and light irradiated to form the polymer brushes (e.g., PS, PMMA). The anti-corrosion properties will be tested by using electrochemical impedance spectroscopy (EIS), Potentiodynamic polarization, and the wettability will be tested by measuring the water contact angle in different environments (e.g., varying pH). Moreover, surface and chemical characterization will be done, such as atomic force microscopy (AFM), surface plasmon resonance (SPR), Ultraviolet-Visible Spectroscopy (UV-Vis), and Fourier-Transform Infrared Spectroscopy (FT-IR).

SI-PET-RAFT polymerization by electrodeposition of aniline, carbazole, and GO: Toward anti-corrosion applications

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