▎ 摘　　要

To develop a convenient way to functionalize graphene oxide (GO) for corrosion protective coatings, a commercial acrylate phosphorus functional monomer (SIPOMER PAM100) was used to modify thiol-terminated GO via thiol-Michael addition click reaction. Subsequently, PAM100 modified GO (PGO) was introduced to waterborne epoxy coating as a nanofiller for anticorrosion reinforcement. The anticorrosive performance of PGO/ WEP nanocomposite coatings was evaluated by electrochemical impedance spectroscopy (EIS). Results obtained from FT-IR, XRD, Raman, SEM and SEM-EDS show that PAM100 is successfully grafted to the surface of GO using gamma-Mercaptopropyl triethoxysilane (KH-580) as a bridge molecule. It is clear that PGO distributes homogenously within WEP matrix from SEM images. After 40-day exposure to 3.5 wt% NaCl solution, the vertical bar Z vertical bar(0.01Hz) of blank WEP suffers a serious decrease (from 9.83 x 10(7) Omega.cm(2) to 4.93 x 10(6) Omega.cm(2)) while PGO/WEP has a relatively smaller change in vertical bar Z vertical bar(0.01Hz) (from 1.35 x 10(8) Omega.cm(2) to 2.91 x 10(7) Omega.cm(2)). It demonstrated that PGO/WEP coating presents a superior corrosion resistance performance.