Bismaleimide resins modified by an allyl ether of bio-based resveratrol with excellent halogen-free and phosphorus-free intrinsic flame retardancy and ultrahigh glass transition temperature

Development of new allyl compounds to modify bismaleimide (BMI) resins for improving the toughness while maintaining a high thermal performance and flame retardancy is still urgent. In this study, we synthesized the allyl ether of resveratrol (AER), a bio-based allyl compound, to modify BMI resin. A series of BMI/AER resins (BA resins) were prepared by changing the molar ratio of BMI to AER. Compared with 2,2′-diallyl bisphenol A (DBA) modified...