PROBLEM TO BE SOLVED: To provide a polymeric antibacterial agent having sufficient antibacterial properties, wide antibacterial spectra, and stability under alkali conditions.SOLUTION: A polymeric antibacterial agent contains a hydrophobic modified dendrimer in which, to a nitrogen atom of a terminal amino group of a dendrimer, added is at least one substituent having a hydrocarbon group represented by the formulae (1)-(3). [R1, R3, R5 each represent a C3-20 alkyl group, a C3-20 alkenyl group, a C6-20 aryl group and the like].SELECTED DRAWING: NoneCOPYRIGHT: (C)2018,JPO&INPIT【課題】十分な抗菌性、広い抗菌スペクトル、及びアルカリ条件下での安定性を有するポリマー型抗菌剤の提供。【解決手段】末端にアミノ基を有するデンドリマーの当該末端アミノ基の窒素原子に、下式(1)~(3)で示される炭化水素基を有する置換基が少なくとも1種付加してなる疎水変性デンドリマーを含むポリマー型抗菌剤。[R1、R3、R5は、各々、C3~20アルキル基、C3~20アルケニル基、C6~20アリール基等]【選択図】なし
