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Self-Healing Anticorrosion Coatings Based on pH-Sensitive Polyelectrolyte/Inhibitor Sandwichlike Nanostructures
Daria V Andreeva1, Dmitri Fix, Helmuth Möhwald
1Max Planck Institute of Colloids and Interfaces Am Mühlenberg 1, Golm/Potsdam, 14476 (Germany). daria.andreeva@mpikg.mpg.de.
Abstract:
An anticorrosion layer of a smart polymer coating is developed. The nature and properties of the coating simultaneously provide three mechanisms of corrosion protection: passivation of the metal degradation by controlled release of an inhibitor, buffering of pH changes at the corrosive area by polyelectrolyte layers, and self-curing of the film defects due to the mobility of the polyelectrolyte constituents in the layer-by-layer assembly.
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