“…[7][8][9] On the other hand, Kanazawa et al 10,11 have reported that water-soluble polymers with phosphonium groups had high antibacterial activity against bacteria such as Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli). We have also reported the preparation of several waterinsoluble resins [12][13][14] having antibacterial activity to prevent the residual toxicity of water-soluble bactericides in water, as well as on high antibacterial activity against such bacteria and by copolymers beads containing quaternary ammonium, phosphonium, or other cationic groups, such beads having high adsorption ability for anionic surfactants such as sodium dodecyl benzenesulfonate, even from its salt solution. 12,14 For this study we synthesized hydrogels having phosphonium groups by the terpolymerization of tri-4-vinylbenzyl phosphonium chloride (TRVB) with alkyl chains of different lengths, acrylamide (AAm), and N,N'-methylenebisacrylamide (MBAAm).…”