The electrochemical testing of polyacrylic acid and its derivatives as inhibitors of corrosion

Grchev, Toma; Cvetkovska, Meri; Schultze, J.W.

doi:10.1016/0010-938x(91)90066-x

Cited by 49 publications

(28 citation statements)

References 5 publications

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“…Compounds known to act through this mechanism for copper are tannic acids, gallic acid, simple amines and hydrazines, quinine and strychnine, monosaccharides, aqueous extracts of various leaves and fruit peels, and substituted benzotria-zo1es.72,73~si-84 For steel, polyacrylic acids, which contain multiple carboxyl groups (similar to humic and fulvic acids), have proved to be excellent corrosion inhibitors. 85 In general, both the specific metal and the oxidation state of the sorbed organic molecule will determine the efficiency of corrosion inhibition. 86 Finally, organic materials can alter the nature of solids that form in their presence and, possibly, the ability of solids to passivate the underlying metal.…”

Section: Localized Corrosionmentioning

confidence: 99%

The pitting corrosion of copper

Edwards¹,

Ferguson²,

Reiber³

1994

Journal AWWA

112

116

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To solve or prevent copper pitting problems, it is first necessary to achieve a clearer understanding of copper corrosion theory, parts of which are currently not supported by practical experience. Some current theories of copper pitting are contradicted by practical experience. Although it has been theorized that chloride initiates copper pitting attack, simple experiments show that the presence of chloride ion actually tends to decrease the likelihood that pitting will occur. In contrast, sulfate plays no role in pitting theory, yet sulfate has consistently demonstrated a propensity to initiate and propagate copper pitting. New theories are required to reconcile pitting theory and practical observation in order to allow the rational mitigation of copper pitting problems. In addition, the presence of natural organic matter (NOM) in water supplies prevents or inhibits certain copper corrosion problems. As a result, recent efforts to remove NOM as a means of controlling disinfection by‐products may lead to increased copper corrosion problems.

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Section: Localized Corrosionmentioning

confidence: 99%

The pitting corrosion of copper

Edwards¹,

Ferguson²,

Reiber³

1994

Journal AWWA

112

116

View full text Add to dashboard Cite

show abstract

“…It was found that a very small quantity of certain water soluble polymers was found to be effective in inhibiting the corrosion of iron. [5][6][7][8][9] Grchev et al 5 have found that poly(acrylic acid) and polyacrylamide were more effective on iron and gold in acid chloride solutions. Manivel and Venkatachari have studied the effect of poly(p-anisidine), 6 poly(p-aminophenol), 7 and poly(p-amino benzoic acid) 8 in acid solutions and found that they were effective in 1M hydrochloric acid solutions.…”

Section: Introductionmentioning

confidence: 98%

The inhibitive effect of poly(p‐toluidine) on corrosion of iron in 1M HCL solutions

Manivel

Venkatachari

2007

J of Applied Polymer Sci

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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.

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“…Polymers such as polyvinylpyridine, polyvinyl bipyridine, polyvinylpyrrolidine, polyvinylpyrrolidone (PVP), polyethylenimine, polyaniline, polyacrylic acid, polyacrylamide, and polyvinylimidazoles have been studied. [7][8][9][10][11][12][13] However, these investigations were conducted in acidic medium. Corrosion inhibition of aluminum using polymers in alkaline environment has not been reported at all.…”

Section: Introductionmentioning

confidence: 99%

Effect of halide ions on the corrosion inhibition of aluminium in alkaline medium using polyvinyl alcohol

Umoren

Ebenso

Okafor

et al. 2006

J of Applied Polymer Sci

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The corrosion inhibition of aluminum in NaOH in the presence of polyvinyl alcohol (PVA) at 30 and 408C and the effect of addition of halides (KCl, KBr, KI) were studied using weight loss and hydrogen evolution methods. Results obtained showed that PVA acts as a corrosion inhibitor in the alkaline environment. The inhibition efficiency increased with increase in concentration of PVA and synergistically increased on the addition of the halides but however decreased with rise in temperature. The phenomenon of physical adsorption is proposed from the obtained E a and Q ads values. PVA was found to obey Freundlich and Frumkin adsorption isotherms. The increase in inhibition efficiency I (%), surface coverage y values as well as synergistic parameter, S I were found to be in the order, which clearly indicates that the radii and electronegativity of the halides play a significant role in the adsorption process.

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The electrochemical testing of polyacrylic acid and its derivatives as inhibitors of corrosion

Cited by 49 publications

References 5 publications

The pitting corrosion of copper

The pitting corrosion of copper

The inhibitive effect of poly(p‐toluidine) on corrosion of iron in 1M HCL solutions

Effect of halide ions on the corrosion inhibition of aluminium in alkaline medium using polyvinyl alcohol

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