Self-curing poly (2, 6-dimethyl-1, 4-phenylene oxide)-organic titanium chelate resin for thin anticorrosive coatings

摘要: Abstract Poly (2, 6-dimethyl-1, 4-phenylene oxide) (PPO) has been extensively investigated as an outstanding engineering plastic. Functionalized PPO with low molecular weight widely studied to expand its applications, while there are relatively few reports on PPO-containing coatings. In this work, a terminal phenolic hydroxyl group (RPPO) was synthesized by redistribution of high commercial bisphenol A via benzoyl peroxide initiator. The self-curing, thermosetting RPPO-organic titanium chelate resins were first developed the reaction between groups in RPPO and isopropoxy diisopropoxy bis (acetylacetonate). Thin coatings 10 μm thickness could be obtained heat curing without any agents. Characterization using Fourier transform infrared spectroscopy 13C nuclear magnetic resonance showed evidence successful preparation resins. behavior thermal stability assessed differential scanning calorimetry thermo-gravimetric analysis. mechanical properties cured coating discussed chemical resistance tested accelerated immersion tests. Benefited self-curing mechanism, issues non-uniformity, bubbles, storage caused agents avoided. It found that thin possessed good properties. Owing rigid aromatic chain structure strong Ti-O bond crosslinked structure, glass transition temperature improved degradation reach up 402 °C. No after 72 h tests boiling water, seawater butanone, which should critical resin’s potential application for anticorrosive coating.