Journal
EUROPEAN POLYMER JOURNAL
Volume 45, Issue 3, Pages 779-787Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.eurpolymj.2008.11.045
Keywords
Functional polysiloxanes; Antimicrobial polymers; Polymer biocides; Imidazolium salts; Antibacterial activity; Cationic biocides
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Funding
- PBZ-KBN [118/T09/2]
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Novel polysiloxanes with pendant biocidal N,N'-dialkylimidazolium salt (ImS) groups were synthesized and compared with polysiloxanes bearing conventional biocidal quaternary ammonium salt (QAS) groups. The bacteriostatic power of these polymers was tested and compared under the same conditions in aqueous solution against two common strains of Gram positive bacteria and three strains of Gram negative bacteria. These new ImS containing polymers exhibited high antibacterial potency against all bacteria studied, similar to those substituted with QAS groups. The advantage of the imidizolium substituted polysiloxane stems from its higher thermal stability, as compared with the quaternary alkylammonium functionalized polymer, as demonstrated by thermogravimetric studies. (C) 2008 Elsevier Ltd. All rights reserved.
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