Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/25673
Title: Novel core-shell particles with poly(n-butyl acrylate) cores and chitosan shells as an antibacterial coating for textiles
Authors: Ye, W
Leung, MF
Xin, J 
Kwong, TL
Lee, DKL
Li, P 
Keywords: Antibacterial coating
Chitosan
Core-shell particles
Issue Date: 2005
Publisher: Elsevier
Source: Polymer, 2005, v. 46, no. 23, p. 10538-10543 How to cite?
Journal: Polymer (United Kingdom) 
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 and 1H 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%.
URI: http://hdl.handle.net/10397/25673
ISSN: 0032-3861
EISSN: 1873-2291
DOI: 10.1016/j.polymer.2005.08.019
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