Novel gradient polyurethane/vinyl ester resin (butyl methacrylate) interpenetrating polymer network (PU/VER(BMA)IPN), cured at room temperature, were synthesized by simultaneous interpenetrating and gradient technics.

• 采用同步互穿和梯次化涂层工艺；室温固化制备新型梯次化聚氨酯/乙烯基酯树脂(甲基丙烯酸丁酯)互穿聚合物网络(PU/VER(BMA)IPN).