The invention provides a block copolymer comprising at least a first block and a second block. The first block comprises a plurality of temperature-sensitive monomeric units, a plurality of hydrophilic monomeric units and a plurality of targeting monomeric units, and the second block comprises a plurality of hydrophobic monomeric units. The second block comprises at least one pH-sensitive moiety.
本发明提供了一种嵌段共聚物,包括至少第一嵌段和第二嵌段。第一嵌段包括多个温度敏感单体单元、多个亲
水性单体单元和多个定位单体单元,第二嵌段包括多个疏
水性单体单元。第二嵌段包括至少一个pH敏感基团。