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Optimizing halogenation conditions of N ‐halamine polymers and investigating mode of bactericidal action
Author(s) -
Ahmed Abd ElShafey I.,
Hay John N.,
Bushell Michael E.,
Wardell John N.,
Cavalli Gabriel
Publication year - 2009
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.30390
Subject(s) - halogenation , monomer , polymer , chemistry , halogen , sodium hypochlorite , polymer chemistry , organic chemistry , materials science , alkyl
Abstract An N ‐Halamine biocidal polymer was prepared by co‐polymerizing toluene‐2,6‐diisocyanate with a new heterocyclic uramil‐based azo‐monomer, followed by halogenation. The mode of action of N ‐halamine polymers on bacteria was investigated and halogenation conditions (temperature, halogenation time, halogen concentration) were optimized for bactericidal action against E. coli and S. aureus . It was found that the mode of action of this type of polymer is a combination of different factors; contact, release, and through interaction of the polymer with the bacterial medium. The most effective halogenation conditions were stirring 1 g polymer in 10 mL sodium hypochlorite (10 %) for 1 h at ambient temperature (22°C). © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009