本文研究了在聚醚氨酯表面上进行接枝共聚合的新方法。首先在聚醚氨酯薄膜上通过过氧化氢光氧化引入过氧化氢基,然后在还原剂亚铁盐或N,N-二甲基对甲苯胺的作用下引发丙烯酰胺接枝共聚合,反应具有低温快速的特点。产物经吸水性实验及扫描电子显微镜观察均证实了是一接枝共聚物。通过模型化合物的研究证明,接枝反应具有较高的选择性,接枝共聚占优势地发生在聚醚软段上,接枝地点很可能就在醚键旁的α-碳原子上。 In this paper, a new method of graft copolymerization on polyether urethane surface has been studied. Firstly, polyether urethane film is introduced into hydrogen peroxide by photooxidation of hydrogen peroxide and then acrylamide is initiated to graft copolymerization under the action of reducing agent ferrous salt or N, N-dimethyl p-toluidine. The reaction Has the characteristics of low temperature fast. The product was confirmed by a water absorption experiment and a scanning electron microscope observation as a graft copolymer. The study of model compounds proved that the grafting reaction has a high selectivity. The graft copolymerization predominates in the polyether segment. The grafting sites are probably located on the α-carbon adjacent to the ether bond.