Oxidatively Degradable Polymeric Material

在次氯酸钠溶液的作用下，聚酰氨基脲被氧化降解。氨基脲改性的聚氨酯也表现出氧化降解性。将酯基引入含双酚二酰肼基团，制得可氧化降解的环氧树脂固化剂。以固化树脂为粘结剂的材料经次氯酸钠溶液处理后自发释放。合成了端酰基氨基脲的自降解性聚氨酯。在端胺聚苯乙烯存在下合成了聚二酰肼，得到了微观相分离的ABA嵌段共聚物。

Poly(acyl semicarbazide) was oxidatively degraded by the action of sodium hypochlorite solution. Polyurethane modified by acyl semicarbazide also showed oxidative degradability. Ester group was introduced into bisphenol bearing diacylhydrazine group to obtain oxidatively degradable curing agent for epoxy resin. The materials glued by the cured resin as the adhesive were spontaneously released to each other by the treatment with sodium hypochlorite solution. Self-degradable polyurethane with terminal acylsemicarbazide group was obtained. When the synthesis of polydiacylhydrazine was carried out in the presence of amine-terminated polystyrene, ABA block copolymer, which showed micro phase separation, was obtained.