Antifouling and anticorrosion properties of one-pot synthesized dedoped bromo-substituted polyaniline and its composite coatings
By Cai, Wei; Wang, Jixiao; Quan, Xiaodong; Zhao, Song; Wang, Zhi
Published in Surface and Coatings Technology
2018
Abstract
One-pot method was proposed to chemically synthesize dedoped bromo-substituted polyaniline (Br-PANI). Epoxy resin composite coatings containing 2.0wt% of dedoped Br-PANIs (EBP) were also prepared. Scanning electron microscopy (SEM), organic elemental analysis and X-ray photoelectron spectroscopy (XPS) analysis demonstrated that Br-PANIs with different Br/N molar ratios were successfully synthesized. The anticorrosion and antifouling performances of EBP coatings were characterized by accelerated immersion test, electrochemical impedance spectroscopy (EIS), XPS, antibacterial test and field test. Results showed that EBP coatings presented excellent protection after 100days' of immersion in 12.0wt% NaCl solution at 95