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Synthesis, characterization and corrosion protection of poly-4-methyl-3-mercapto-1,2,4-triazole/TiO2 composite on copper

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Abstract

The present work deals with the electrochemical synthesis of poly-4-methyl-3-mercapto-1,2,4-triazole (p-MMTA)/TiO2 composite on metallic copper to evaluate its corrosion protection. The composite was characterized by FT-IR, cyclic voltammetry, X-ray diffraction and energy dispersive X-ray analysis. The distribution of inorganic particles in the polymeric matrix was evidenced from the scanning electron microscopic studies. The corrosion performance of composite coating was evaluated by electrochemical impedance spectroscopy and Tafel polarization measurements in 3.5 % NaCl medium. The p-MMTA/TiO2 composite showed an excellent corrosion protection ability, which was evidenced from the results of electrochemical measurements. The enhanced ability could be due to the barrier effect of composite coatings against corrosive species and also due to the synergistic effect between organic polymer and inorganic particles.

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Acknowledgments

One of the authors (G. Rajkumar) gratefully acknowledges the financial support from Research Fellowship in Sciences for Meritorious Students (UGC-RFSMS, No.: F.4-1/2006 (BSR)7-225/2009 (BSR) dt. 26.06.2012), New Delhi and both the authors thank UGC-SAP and authorities of GRI for their constant help and support.

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Authors and Affiliations

  1. Department of Chemistry, Gandhigram Rural Institute, Deemed University, Gandhigram, Dindigul, 624 302, Tamil Nadu, India

    Ganesan Rajkumar & Mathur Gopalakrishnan Sethuraman

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  1. Ganesan Rajkumar
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  2. Mathur Gopalakrishnan Sethuraman
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Correspondence to Mathur Gopalakrishnan Sethuraman.

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Rajkumar, G., Sethuraman, M.G. Synthesis, characterization and corrosion protection of poly-4-methyl-3-mercapto-1,2,4-triazole/TiO2 composite on copper. Polym. Bull. 71, 3249–3260 (2014). https://doi.org/10.1007/s00289-014-1248-5

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  • DOI: https://doi.org/10.1007/s00289-014-1248-5

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