A method of modifying a polymeric surface of a substrate including: (iii) providing the polymeric surface with functional groups; and (iv) contacting the surface with (a) a polyamine compound reactive with the surface functional groups said polyamine comprising at least four amine groups including at least two amine groups selected from primary and secondary amine groups and (b) a crosslinking agent reactive with the polyamine; to provide a crosslinked network grafted to the substrate surface.
                            一种改性基底聚合物表面的方法,包括:(iii) 为聚合物表面提供官能团;(iv) 使表面与(a) 与表面官能团反应的
多胺化合物接触,所述
多胺包括至少四个胺基,其中至少两个胺基选自
伯胺和仲胺基,以及(b) 与
多胺反应的
交联剂;以提供接枝到基底表面的交联网络。