Journal
POLYMER
Volume 45, Issue 14, Pages 4741-4747Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.polymer.2004.04.062
Keywords
silver/polymer system; surface-functional porous microspheres; anti-bacterial performance
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This study presents a different colloidal silver (Ag)/polymer system where Ag nanoparticles are deposited uniformly onto surface-functional porous poly(ethylene glycol dimethacrylate-co-acrylonitrile) (poly(EGDMA-co-AN)) microspheres. The formation and morphology of the composite microspheres were characterized from electron microscopy and X-ray diffraction analyses. The significance of the present report is that owing to the high affinity between Ag and nitrile group (Cequivalent toN) on the large surface of the microspheres, the Ag nanoparticles having a face-centered cubic phase were incorporated evenly into the deep pores of the microspheres with fine size and size distribution. In the preservation test, the Ag/poly(EGDMA-co-AN) composite microspheres obtained showed an excellent anti-bacterial performance, elucidating a high applicability for a new preservative. (C) 2004 Elsevier Ltd. All rights reserved.
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