Journal
CARBOHYDRATE POLYMERS
Volume 139, Issue -, Pages 191-196Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2015.12.047
Keywords
Quaternary ammonium salt of chitosan; Dye; Synthesis; Antimicrobial; Water solubility
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Funding
- National Science & Technology Pillar Program during the Twelfth Five-year Plan Period [2012BAD24B02]
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A new antimicrobial biopolymer dye was synthesized by reaction of quaternary ammonium salt of chitosan and reactive red x-3b. And quaternary ammonium salt of chitosan was produced by grafting glycidyltrimethylammonium chloride on chitosan. The synthesized materials were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), solubility test and antimicrobial test. Results show that the antimicrobial biopolymer dye was combined by -N+(CH3)(3) of quaternary ammonium salt of chitosan and sulfonic group of reactive red x-3b. Water solubility of chitosan biopolymer dye was increased as well as pH value. In addition, antibacterial property of new synthesized dye was excellent, whose antibacterial rates of Staphylococcus and Escherichia coli were both bigger than 99%. These results may provide new perspectives on improving the decorative properties and antimicrobial properties in wood industry. (C) 2015 Elsevier Ltd. All rights reserved.
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