Journal
CHEMPLUSCHEM
Volume 80, Issue 7, Pages 1170-1177Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cplu.201500092
Keywords
benzoxazines; coatings; corrosion protection; polybenzoxazines; Zn-Mg-Al coated steel
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Funding
- Sectoral Operational Programme Human Resources Development of the Ministry of European Funds [POSDRU/159/1.5/S/132397]
- ThyssenKrupp Steel Europe AG
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Benzoxazine derivatives were synthesized using phenolated methyl oleate and either aniline, 1,6-diaminohexane, or 4,4-diaminodiphenylmethane, respectively, as amine components. Polymerization of the benzoxazine derivatives led to the formation of hydrophobic and dense coatings on Zn-Mg-Al alloy coated steel sheets for passive corrosion protection. The polybenzoxazine coatings which are formed by crosslinking during a heat-treatment step invoked a substantial anodic shift of the open-circuit potential as well as the breakthrough potential in potentiodynamic measurements. The proposed polybenzoxazine derivatives pave the way for a new type of passive polymer protection system based on sustainably obtained precursor components.
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