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This part is devoted to study the influence of three selected polyacrylic acids (PAAs) with different molecular weights (PAA1=1800, PAA2=11,000 and PAA3=14,000gmol −1 ) on the corrosion inhibition of Al in weakly alkaline solutions (pH 8 and 10) at 30°C. Measurements were conducted under different experimental conditions using chemical (weight loss) and electrochemical (potentiodynamic polarization...