Main chain polyamines comprise amine and ammonium groups along the polymer backbone. Main chain polyamines can be used as pharmaceutical agents and in pharmaceutical compositions. The main chain polyamines are particularly useful in the treatment or prevention of mucositis and infection, specifically oral mucositis and surgical site infection.主鏈型聚胺類係在沿著聚合物骨架上包括胺和銨基團。主鏈型聚胺類可用作醫藥劑及用於醫藥組成物中。主鏈型聚胺類特別可用於治療或預防黏膜炎和感染,特別是口腔黏膜炎及手術部位感染。