Chinese Journal of Applied Chemistry

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Inhibitive Effect of the Self-assembled Monolayers of Dithiocarbamate Modified Glucose on Copper Surface

ZHANG Shenyang, LIAO Qiangqiang*, XU Shaodi, YANG Dong, ZHAO Lulu, GE Honghua   

  1. (Shanghai Engineering Research Center of Energy-Saving in Heat Exchange Systems,
    Shanghai University of Electric Power,Shanghai 200090,China)
  • Received:2012-07-12 Revised:2012-09-25 Published:2013-05-10 Online:2013-05-10

Abstract: Dithiocarbamate modified glucose(DTCG), an environment-friendly corrosion inhibitor, has been synthesized. Corrosion inhibition effect of DTCG self-assembled monolayers(SAMs) formed on copper surface was measured in 3%NaCl solution using electrochemical impedance and polarization curve methods. The results indicate that DTCG SAM has good corrosion inhibition effect for copper and its inhibition efficiency can be close to 97% after self-assembling in 120 mg/L DTCG for 4 h. Quantum chemical calculations also show that DTCG possesses excellent anticorrosion performance.

Key words: dithiocarbamate modified glucose, Self-assembled monolayers, Copper, electrochemical methods, quantum chemistry

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