N-halamine/quat siloxane copolymers for use in biocidal coatings

  • Liang J
  • Chen Y
  • Barnes K
 et al. 
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A series of copolymers incorporating N-halamine siloxane and quaternary ammonium salt siloxane units has been prepared. The primary function of the quat units was to render the siloxane copolymers soluble in water. The copolymers have been coated onto cotton swatches and evaluated for biocidal efficacy against Staphylococcus aureus and Escherichia coli O157:H7. It was determined that both N-halamine and quat functional groups were effective against S. aureus, but only the N-halamine units were effective against Escherichia coli O157:H7. The copolymers should be useful for applications for which aqueous media is preferred over organic solvents to be used during coating procedures. © 2005 Elsevier Ltd. All rights reserved.

Author-supplied keywords

  • Bacteria
  • Bioactivity
  • Siloxane

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