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Issue 103, 2016, Issue in Progress
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Functionalization of PVA to synthesize p-vinyl benzene sulfonate terpolymers – a comparative study of anticorrosion, adsorption and activation properties of the terpolymers on mild steel in 1 M HCl

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Abstract

Two water soluble terpolymers viz. PVA-AAm-PVBS (polyvinyl alcohol-g-poly(acrylamide-p-vinyl benzene sulfonate)) and PVA-AA-PVBS (polyvinyl alcohol-g-poly(acrylic acid-p-vinyl benzene sulfonate)) were synthesized and characterized by FTIR, NMR, TGA and DSC. The corrosion protection efficiency of the terpolymers for mild steel in 1 M HCl has been studied by weight loss technique at various temperatures. Adsorption parameters were derived by fitting the results to Temkin isotherm. The adsorption of the inhibitors on metal surface was further confirmed by surface analysis using SEM and AFM. Kinetic parameters were also derived to understand the corrosion process. Results consistently showed that, both terpolymers are good inhibitors.

Graphical abstract: Functionalization of PVA to synthesize p-vinyl benzene sulfonate terpolymers – a comparative study of anticorrosion, adsorption and activation properties of the terpolymers on mild steel in 1 M HCl

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Article information


Submitted
30 Jul 2016
Accepted
16 Oct 2016
First published
17 Oct 2016

RSC Adv., 2016,6, 100748-100758
Article type
Paper

Functionalization of PVA to synthesize p-vinyl benzene sulfonate terpolymers – a comparative study of anticorrosion, adsorption and activation properties of the terpolymers on mild steel in 1 M HCl

R. Geethanjali and S. Subhashini, RSC Adv., 2016, 6, 100748
DOI: 10.1039/C6RA19336F

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