It is excellent to [challenge] workability, to provide a polymeric material having a bactericidal action antibacterial or excellent. For example [MEANS FOR SOLVING PROBLEMS], or antibacterial consists of hyperbranched polymers containing quaternary ammonium salts such as represented by the following formula (1) of fungicide [1] Wherein, R 1 represents a hydrogen atom or a methyl group, each independently, is carbon atoms 1 and R 4 2, R 3 R represents straight-chain of 20, a cyclic alkyl group or a branched , formula A 1 (2) [2] of (Wherein carbon atoms 1 A 2 to represent linear 30, a cyclic alkylene group or a branched, Y 4 or 2, Y 3 Y 1, Y is. Represents a hydrogen atom) is represented by represents a structure that is not 2 and a number of repeating unit structures and n is an integer of 100,000. ]. None [Selection Figure]【課題】加工性に優れ、優れた抗菌又は殺菌作用を有する高分子材料を提供すること。【解決手段】例えば、下記式(1)で示されるような第4級アンモニウム塩を含有するハイパーブランチポリマーからなる抗菌又は殺菌剤【化1】〔式中、R1は水素原子又はメチル基を表し、R2、R3及びR4は、それぞれ独立して、炭素原子数1ないし20の直鎖状、枝分かれ状又は環状のアルキル基を表し、A1は式(2)【化2】(式中、A2は炭素原子数1ないし30の直鎖状、枝分かれ状又は環状のアルキレン基を表し、Y1、Y2、Y3又はY4は、水素原子を表す。)で表される構造を表し、nは繰り返し単位構造の数であって2ないし100,000の整数を表す。〕。【選択図】なし
