Electropolymerization of [N-(1, 3-thiazo-2-yl)] maleamic acid and their Nanocomposite with Graphene Oxide as Protective Coating against Corrosion and Antibacterial Action

Abstract

Poly [N-(1, 3-thiazo-2yl)]maleamic acid synthesized from corresponding monomer N-(1, 3-thiazo-2yl)maleamic acid (NTM) by using the process of electrochemical polymerization in aqueous solution at room temperature. The structure of the polymeric layer generated on the surface of (Low Carbon Steel (L.C.S)) (working electrode) was investigated by Fourier Transmission Infrared [FT-IR] and a scanning electron microscope [SEM]. The anticorrosion ability of a polymeric layer on low carbon steel (L.C.S) was investigated using a method of electrochemical polarization at temperatures ranging from (293 to 323) K, in a 3.50 percent NaCl solution. The activation parameters, both kinetic and thermodynamic for the L.C.S corrosion process were computed. The biological action of polymeric film had been tested against the gram positive, Staphylococcus aureus (S.aureus), and the gram negative, Escherichia coli (E.coli). The result shows that polymer and polymer nanocomposite provides the best performances for corrosion protection of the L.C.S by reducing its corrosion current density in comparison with the bare L.C.S. The effect of nanomaterials has been explored by adding them to solution of the monomer for improving the anticorrosion and anti-bacterial characteristics of polymeric films. The Oxide of Graphene was the nanomaterial used in this investigation (GO).

تأثير الكرافين واوكسيد الحديدوزعلى كفاءة طلاء البوليوجينول للفولاذ المقاوم للصدأ في محلول كلوريد الصوديوم

“…The following Eq. 2 is used to determine the protection efficacy 14,15 %Pe =[(Icor. The cathodic and anodic Tafel plots in a solution of 3.5% NaCl were used to calculate the corrosion potential (Ecor) and corrosion current density (Icor) of the SS316L that had not been coated with PE before to and after.…”

Corrosion Protection Performance of PACC and PACC-Metal Oxides Nanocomposites Electropolymerized Coating of Low Carbon Steel

“…The corrosion current density (i corr ) and corrosion potential (E corr ) were achieved at the intersection of the anodic and cathodic currentpotential curves. The electrochemical characteristics for the LCS disc in 3.5% NaCl solution with and without PACC and PACC-metal oxides nanocomposite are shown in Table 3 by Tafel plots (i corr , E corr , C.R, PL,  a , and  c ) [35]. Equation ( 2) was used to calculate the protection efficiency, PE% (included in Table 3), using the i corr values [36]:…”

تخليق بوليمرات موصلة كهربائياً من البولي أثينول / أكاسيد المعادن النانوية للحماية من التأكل والنشاط البكتيري

“…It has been demonstrated that using nano particles in polymer coatings can improve not only the barrier effects but also the electrochemical anticorrosion and other performance characteristics such as adhesions, thermal stabilities, mechanical strengths, magnetonstatic shielding, and hydrophobic properties 12,13 . Many different kinds of oxides nano particles, such as TiO2, ZnO, Al2O3, CeO2, SiO2 and Nano clays, were applied to polymer coating and shown superior protective properties than standard polymer coating [14][15][16] .…”