Novel core-shell particles with poly(n-butyl acrylate) cores and chitosan shells as an antibacterial coating for textiles

Weijun Ye, Man Fai Leung, John Haozhong Xin, Tsz Leung Kwong, Daniel Kam Len Lee, Pei Li

Research output: Journal article publicationJournal articleAcademic researchpeer-review

156 Citations (Scopus)

Abstract

A novel antibacterial coating for cotton fabrics has been developed using core-shell particles that consist of poly(n-butyl acrylate) (PBA) cores and chitosan shells. The spherical particles are prepared via a surfactant-free emulsion copolymerization of n-butyl acrylate in an aqueous chitosan solution induced by a small amount of tert-butyl hydroperoxide. The PBA-chitosan core-shell particles have a narrow particle size distribution with average particle diameter of approximately 300 nm, and display highly positive surface charges. Transmission electron microscopic (TEM) images clearly reveal well-defined core-shell morphology of the particles where PBA cores are coated with chitosan shells. The particle is composed of both the PBA homopolymer and the chitosan-g-PBA copolymer, which have been characterized with FTIR and1H NMR spectroscopes. The cotton fabric is coated with PBA-chitosan particles by using a conventional pad-dry-cure method. Its antibacterial efficiency is then evaluated quantitatively against Staphylococcus aureus with the shake flask method. The cotton treated with PBA-chitosan particles demonstrates an excellent antibacterial activity with bacterial reductions more than 99%.
Original languageEnglish
Pages (from-to)10538-10543
Number of pages6
JournalPolymer
Volume46
Issue number23
DOIs
Publication statusPublished - 14 Nov 2005

Keywords

  • Antibacterial coating
  • Chitosan
  • Core-shell particles

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics

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