SCI和EI收录∣中国化工学会会刊

Chin.J.Chem.Eng. ›› 2016, Vol. 24 ›› Issue (4): 543-552.DOI: 10.1016/j.cjche.2015.11.019

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

R. Geethanjali, S. Subhashini   

  1. Department of Chemistry, Avinashilingam Institute for Home Science and Higher Education for Women, Coimbatore 641043, India
  • Received:2015-02-10 Revised:2015-10-07 Online:2016-05-27 Published:2016-04-28
  • Contact: R. Geethanjali
  • Supported by:

    One of the authors, R. Geethanjali thanks Tamil Nadu State Council for Science and Technology (Tnscst/rfrs/vr/2013-14) for catalysing and financially supporting the research work under the RFRS scheme.

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

R. Geethanjali, S. Subhashini   

  1. Department of Chemistry, Avinashilingam Institute for Home Science and Higher Education for Women, Coimbatore 641043, India
  • 通讯作者: R. Geethanjali
  • 基金资助:

    One of the authors, R. Geethanjali thanks Tamil Nadu State Council for Science and Technology (Tnscst/rfrs/vr/2013-14) for catalysing and financially supporting the research work under the RFRS scheme.

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