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Phenolated Oleic Acid Based Polybenzoxazine Derivatives as Corrosion Protection Layers
Author(s) -
Bălănucă Brindusa,
Raicopol Matei,
Maljusch Artjom,
Garea Sorina,
Hanganu Anamaria,
Schuhmann Wolfgang,
Andronescu Corina
Publication year - 2015
Publication title -
chempluschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.801
H-Index - 61
ISSN - 2192-6506
DOI - 10.1002/cplu.201500092
Subject(s) - aniline , corrosion , amine gas treating , materials science , polymerization , oleic acid , polymer , alloy , bifunctional , anode , chemical engineering , polymer chemistry , chemistry , organic chemistry , catalysis , metallurgy , composite material , biochemistry , electrode , engineering
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.