| 摘要 |
Method for preparing biocidal halogenated polystyrene hydantoins. The biocid al polymers poly-1,3-dichloro-5-methyl-(4~-vinylphenyl)hydantoin, poly-1,3- dibromo-5-methyl-5-(4~-vinylphenyl)hydantoin, and their monohalogenated alka li metal salts and protonated derivatives have been prepared as porous beads by use of highly crosslinked polystyrene beads as starting materials. The porou s beads will be useful in water and air disinfection applications when employe d in cartridge filters and carafe (for water), as well as for controlling noxious odor when mixed with absorbent materials in items such as disposable diapers, incontinence pads, bandages, sanitary napkins, pantiliners, mattres s covers, shoe inserts, sponges, animal litter, carpets, fabrics, and air filters or the like.
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