A Novel Approach to Prepare Poly(Vinyl Acetate)/Ag Nanocomposite for Effective Antimicrobial Coating Applications |
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Authors: | Ahmed M Youssef Mai Youssef D M Ayad A A Sarhan |
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Affiliation: | 1. Packing and Packaging Materials Department, National Research Center, Dokki, Giza, Egypt;2. Chemistry Department, Faculty of Science, Mansoura University, Egypt |
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Abstract: | Polyvinyl acetate nanocomposites were successfully prepared based on silver nanoparticles. First, silver nanoparticles were directly prepared during the in situ emulsion polymerization of vinyl acetate monomer using AgNO3 as a source of Ag+ ions and poly(vinyl alcohol) was used for dual functions as emulsifier for emulsion polymerization and as a stabilizing agent, trisodium citrate (C6H5O7Na3) was used as reducing agent for Ag+ ions during the polymerization process. The prepared polyvinyl acetate/Ag nanocomposites were assessed using X-ray diffraction, scanning electron microscopy, Fourier transform infrared, transmission electron microscopy, and ultraviolet spectra. The antibacterial properties of the prepared polyvinyl acetate/Ag nanocomposites were investigated as antimicrobial activity against pathogenic bacteria, i.e., Staphylococcus aureus (G+ve bacteria) and Escherichia coli (G?ve bacteria). These polyvinyl acetate nanocomposites could be used as a promising material for enhanced and continuous antibacterial applications as coating and packaging materials. |
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Keywords: | AgNPs Antibacterial coating In situ emulsion polymerization Nanocomposites PVAc |
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