Corrosion Protection and Biological Activity Studies for Electrochemical Polymerized Poly (N-benzothiozolyl tetrahydrophthalamic acid) on Stainless Steel Alloy

Abstract

The present work reports the electrochemical synthesis of poly (N-benzothiozolyl tetrahydrophthalamic acid) on stainless steel 316 (S.S) which acts as working electrode by using electrochemical polymerization technique. The formed polymer film was characterized by Fourier Transform Infrared Spectroscopy (FT-IR) and Atomic Force Microscope (AFM). Corrosion protection tests for coated and uncoated S.S with polymer film were studied in 0.2 M of hydrochloric acid (HCl) solution by followed Tafel and potentiodynamic procedures. Kinetic and thermodynamic of activation parameters (Ea, A, ΔH*, ΔS* and ΔG*) were calculated. Also, investigations the effect of the synthesized polymer on some strain of bacteria a gram positive bacterium which is Staphylococcus aureus (Staph.Aure) and negative bacteria which is Escherichia coli (E.Coli). In addition the polymer film was modified with nanomaterials which are (ZnO_n (nano) and Graphene).

Keywords: Electrochemical polymerization, Conducting polymer, Stainless steel, Anticorrosion, Antimicrobial activity