Bio-degradable vegetable oil based hyperbranched poly(ester amide) as an advanced surface coating material

► Synthesis of bio-based hyperbranched poly(ester amide) for the first time. ► Thermoset possesses high mechanical properties and thermal stability. ► Superior performance of hyperbranched poly(ester amide) over the linear analog. ► Thermoset biodegraded both by Pseudomonas aeruginosa and lipase.