Abstract
Three heterocyclic N-halamine structures containing amine, amide, or both functional groups were immobilized onto cotton fabric through epoxide tethering. The coatings were rendered biocidal upon exposure to dilute household bleach solution. The coatings exhibited superior biocidal functionality with complete inactivation of about 6 logs of Staphylococcus aureus and Escherichia coli O157:H7 within 2–10 min contact time depending on the structure. Moreover, the coatings were quite stable against repeated laundering so that recharging was not even necessary after 50 washing cycles. Stability of the coatings against ultraviolet light exposure was studied with a comparison of the amide- and amine-containing N-halamines.
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This work was supported by US Air Force through Grant FA8650-07-1-5908.
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Cerkez, I., Kocer, H.B., Worley, S.D. et al. Epoxide tethering of polymeric N-halamine moieties. Cellulose 19, 959–966 (2012). https://doi.org/10.1007/s10570-012-9699-z
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DOI: https://doi.org/10.1007/s10570-012-9699-z