A Chinese research team has developed bio-based polybenzoxazine vitrimers with self-healing and shape memory properties. The coatings are based on the dynamic exchange of disulphide bonds, introduced via the curing agent bis(4-aminophenyl) disulphide (APDS) into a cardanol/furfurylamine-derived polybenzoxazine network. Stress relaxation experiments revealed dynamic exchange activation energies ranging from 53.9 to 115.7 kJ/mol. Reading tip: Functional CoatingsThe EC Tech Report “Functional Coatings” gives you an up-to-date bundle on functional coatings with articles, videos and other handpicked content. & Xin, Z., Self-healing biobased polybenzoxazine vitrimers for anticorrosion application.