Soluble conducting poly(aniline-co-orthotoluidine) copolymer as corrosion inhibitor for carbon steel in 3% NaCl solution

Electrochemical Study of Penicillin-G as a Corrosion Inhibitor for Fe-19Cr Stainless Steel in Hydrochloric Acid

“…It is reported that organic materials, such as polymers or macromolecules having -OH, -COOH, -NH2, etc., functional groups, were found to be corrosion inhibitors in different corrosive environments. Important corrosion inhibition efficiencies that are observed using conducting polymers are not only due to the presence of π-electrons, but also to their larger molecular size, which ensures greater coverage of the metallic surface [12]. Thus, the efficiency of an organic compound as a successful inhibitor is mainly due to its ability to be adsorbed onto the metal surface.…”

“…The initial report of corrosion inhibition by organic inhibitors is attributed to Speller [11], who examined the corrosion inhibition of scaled water pipes in HCl. Since then, many organic and inorganic compounds that are added to corrosive fluids have been investigated for this purpose [10][11][12][13][14][15][16][17][18][19][20][21][22][23]. It is reported that organic materials, such as polymers or macromolecules having -OH, -COOH, -NH2, etc., functional groups, were found to be corrosion inhibitors in different corrosive environments.…”

“…Metal corrosion is a major industrial problem, and it has attracted the attention of researchers worldwide [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20]. The use of inhibitors has been found to be one of the best practical methods available for the protection of metals against corrosion, especially in acidic media [8][9]23].…”

“…Inhibitors are substances (or a combination of substances) added in a very low concentration to treat the surface of a metal that is exposed to a corrosive environment, in order to terminate or reduce its corrosion rate [8]. The most efficient corrosion inhibitors are organic compounds containing electronegative functional groups and  electrons in their triple or conjugated double bonds, and/or inorganic compounds, such as chromate, dichromate, nitrite, and so on [10][11][12][13]. The initial report of corrosion inhibition by organic inhibitors is attributed to Speller [11], who examined the corrosion inhibition of scaled water pipes in HCl.…”

CSA Doped Poly(aniline-co-o-toluidine) and Dispersed Zinc Oxide Nanoparticles: a Promising Material for Photovoltaics

“…The copolymer shows new morphology with higher thermal stability and better solubility than its homopolymers. Potentiodynamic polarization and electrochemical impedance spectroscopy have been employed to study the corrosion inhibition effects of this copolymer on carbon steel 9 . Recently it has been reported that the metal composite of poly (aniline-co-o-toluidine)-BaFe 12 O 19 composite exhibited a ferro magnetic behavior 10 .…”