Synthesis of water-soluble acryl terpolymers and their anticorrosion properties on mild steel in 1 mol·L-1 HCl

doi:10.1016/j.cjche.2015.11.019

Abstract

Abstract: Two water soluble acryl terpolymers containing polyvinyl alcohol, acrylamide/acrylic acid and vinyl sulphonic acid (VSA) were synthesized by free radical polymerization in aqueous medium. The morphological structure of the polymers were analysed using FTIR and ¹H NMR, while the thermal properties were analysed by TGA and DSC. The inhibitive action of the terpolymers on corrosion of mid-steel in 1 mol·L^-1 HCl was studied using gravimetric, potentiodynamic polarisation and electrochemical impedance spectroscopy (EIS) at 303 K. Both the polymers provided inhibition efficiency around 90% which clearly demonstrate that the grafted polymers have effective corrosion inhibiting ability on MS corrosion.

Key words: Polymerization, Electrochemistry, NMR, Polyvinyl alcohol, Acrylamide, Acrylic acid, Terpolymer, Acid corrosion inhibitor

摘要： Two water soluble acryl terpolymers containing polyvinyl alcohol, acrylamide/acrylic acid and vinyl sulphonic acid (VSA) were synthesized by free radical polymerization in aqueous medium. The morphological structure of the polymers were analysed using FTIR and ¹H NMR, while the thermal properties were analysed by TGA and DSC. The inhibitive action of the terpolymers on corrosion of mid-steel in 1 mol·L^-1 HCl was studied using gravimetric, potentiodynamic polarisation and electrochemical impedance spectroscopy (EIS) at 303 K. Both the polymers provided inhibition efficiency around 90% which clearly demonstrate that the grafted polymers have effective corrosion inhibiting ability on MS corrosion.

关键词: Polymerization, Electrochemistry, NMR, Polyvinyl alcohol, Acrylamide, Acrylic acid, Terpolymer, Acid corrosion inhibitor

R. Geethanjali, S. Subhashini. Synthesis of water-soluble acryl terpolymers and their anticorrosion properties on mild steel in 1 mol·L^-1 HCl[J]. Chin.J.Chem.Eng., 2016, 24(4): 543-552.

R. Geethanjali, S. Subhashini. Synthesis of water-soluble acryl terpolymers and their anticorrosion properties on mild steel in 1 mol·L^-1 HCl[J]. Chinese Journal of Chemical Engineering, 2016, 24(4): 543-552.

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Synthesis of water-soluble acryl terpolymers and their anticorrosion properties on mild steel in 1 mol·L^-1 HCl

Synthesis of water-soluble acryl terpolymers and their anticorrosion properties on mild steel in 1 mol·L^-1 HCl

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