Synthesis of novel N-halamine biocidal polymers

Two new water-insoluble polymeric biocides have been synthesized: poly[3-ch loro-2,2,5,5-tetramethyl-1-(4'-vinylbenzyl)imidazolidin-4-one] (Poly-p-VBD- Cl) and poly[acrylonitrile-co-(1,3-dichloro-5-methyl-5-(4'-vinylbenzyl)barb ituric acid)] (Poly-AN-Barb-Cl). The polymer and copolymer were tested for longevity of the bactericidal activity against; Staphylococcus aureus. Not only did this test reveal significant bactericidal activity by these materi als, but also good stability in dry storage. These new biocidal polymers co uld be used in cartridge filters for the disinfection of recreational and p otable water.