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| Titel: |
The Effect of Some Polymers on the Corrosion Behaviour of Tin in 1 M NaCl Solution |
| Auteur: |
Sayyah, S. M. El-Rehim, S. S. Abd El-deeb, M. M. |
| Verschenen in: |
International journal of polymeric materials |
| Paginering: | Jaargang 49 (2001) nr. 1 pagina's 59-80 |
| Jaar: |
2001-03-01 |
| Inhoud: |
The effect of various concentrations (0.5 to 30 ppm) of polyacrylamide samples which have different molecular weights (sample A = 3.4 × 104 B=1.52 × 104 and C = 1 × 10 4 gmol-1) and poly(propenoyl glycine) (sample D) which has the same degree of polymerization (Dp) of sample C on the corrosion behaviour of tin in 1 M NaCl solution were investigated at 20°C using potentiodynamic polarization technique. The various electrochemical parameters (Icorr Ecorr Rp and Epit and Ip) were calculated from Tafel plots in the absence and presence of these polymers. The data reveal that the inhibition efficiency of polymer C is higher than that of polymer B, while the presence of polymer A (the highest molecular weight) accelerates the corrosion of tin in 1 M NaCl indicating that the inhibition decreases with increasing molecular weight. On the other hand, polymer D shows the strongest inhibition efficiency. For the investigated polymer inhibitors B, C and D, it was found that the experimental data fit Flory-Huggins adsorption isotherm. The effect of temperature on various corrosion parameters and the inhibition efficiency was studied for polymer D(10ppm) in 1 M NaCl over the temperature range from 20°C to 50°C. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 10 van 10 gevonden artikelen
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