This application relates generally to biocompatible water-soluble polymers with pendant functional groups and methods for making them, and particularly to co-polymer polyglutamate amino acid conjugates useful for a variety of anti-cancer drug delivery applications.本發明通常是有關於一種具有側位官能基團之生物相容之水溶性聚合物以及一種所述聚合物之製造方法,且特別是有關於一種可使用於各式抗癌藥傳遞應用之聚麩胺酸胺基酸共聚物複合體。