The inhibitive effect of poly(p‐toluidine) on corrosion of iron in 1M HCL solutions |
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| Authors: | P Manivel G Venkatachari |
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| Affiliation: | 1. A.C. College of Engineering and Technology, Karaikudi 630 004, Tamil Nadu, India;2. Central Electrochemical Research Institute, Karaikudi 630003, Tamil Nadu, India |
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| Abstract: | In recent years, polymer amines have been recognized as an excellent corrosion inhibitors for iron in acid solutions. In this work, the inhibitive effect of p‐toluidine and poly(p‐toluidine) on corrosion of iron in 1M HCl has been studied by the electrochemical methods such as impedance, linear polarization, Tafel polarization techniques. The effectiveness of poly(p‐toluidine) was found to be high in comparison with that of monomer. The results showed that p‐toluidine and poly(p‐toluidine) suppressed both cathodic and anodic processes of iron dissolution in 1M HCl. The inhibition efficiency of both p‐toluidine and poly(p‐toluidine) were found to increase with the inhibitor concentrations. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci, 2007 |
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| Keywords: | p‐toluidine poly(p‐toluidine) iron HCl inhibition corrosion |
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