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E. Kociołek-Balawejder


Ion exchange resins and products of their chemical modification as macromolecular disinfectants

Polimery 1995, No 10, 561


DOI: dx.doi.org/10.14314/polimery.1995.561

Summary

The macromolecular disinfectants are currently synthesized to be used under specific conditions for potable water disinfection. They are easy to store and transport and to dose into the medium to be disinfected. These features favourably distinguish these materials from conventional gaseous or liquid disinfectants. The macromolecular disinfectants discussed in the paper are prepared either directly from commercial ion exchange resins (cation or anion, or from the semi-products used in their synthesis. Two groups of ion-exchange resin disinfectants were characterized, namely, contact disinfectants and demand release disinfectants to water. Bactericidal properties of these products are due to the macromolecular backbone (primarily a styrene/divinylbenzene copolymer) carrying specific functional groups that either do or do not exhibit the anion- or cation-exchanging properties. These include the chloride-form quaternary ammonium groups attached to a long aliphatic chain, polyiodideform (I3-, I5-, I7-) quaternary ammonium groups, silver-form sulphonic groups, N-halogensulphonamide and N,N'-dihalogensulphonamide groups comprising active halogen atoms (chlorine, bromine, and iodine and N-halogen-Nalkylsulphonamide groups.


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