The solvent-free bismaleimide (BMI) resin was prepared by toughen-modifying the BMI resin with diamine, epoxide resin and modifying agent A.

• 摘要采用二元胺、环氧树脂和改性剂A对双马来酰亚胺树脂进行增韧改性，制备出无溶剂型双马来酰亚胺树脂。