Journal
CORROSION SCIENCE
Volume 168, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2020.108555
Keywords
POSS; Tetraaniline; Epoxy coating; Corrosion protection
Funding
- National Science Fund for Distinguished Young Scholars of China [51825505]
- Strategic Priority Research Program of the Chinese Academy of Sciences [XDA13040601]
- One Hundred Talented People of the Chinese Academy of Sciences [Y60707WR04]
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A giant molecule containing hydrophobic polyhedral oligomeric silsesquioxane (POSS) and protonic acid-doped tetraaniline (ATA) was designed and synthesized via isocyanate-amine reactions. This flower-like filler exhibits redox activity and high specific capacitance (280 F g(-1)), making it feasible for corrosion protective applications. Electrochemical impedance spectroscopy, local electrochemical impedance spectroscopy, and salt spray tests were performed to evaluate the effect of POSS-ATA on the corrosion inhibition performance of the coating. This giant molecule expands the scope of conducing polymers for the active corrosion inhibition of metallic substrates and provides a platform for studying the mull-responsive self-assembly behaviour of conducing polymers.
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