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Surface characterization of 8‐quinolinyl acrylate‐grafted poly(ethylene terephthalate) prepared by plasma glow discharge and it's antibacterial activity
Author(s) -
Hyun SeokHee,
Kim MinWoo,
Oh DaeHee,
Kang InnKyu,
Kim WooSik
Publication year - 2006
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.23480
Subject(s) - x ray photoelectron spectroscopy , fourier transform infrared spectroscopy , acrylate , materials science , attenuated total reflection , nuclear chemistry , polymer chemistry , glow discharge , ethylene , analytical chemistry (journal) , chemistry , catalysis , chemical engineering , polymer , copolymer , plasma , organic chemistry , composite material , physics , quantum mechanics , engineering
Poly(ethylene terephthalate) (PET) film was exposed to oxygen plasma glow discharge to produce peroxides on its surface. These peroxides were then used as catalysts for the polymerization of 8‐quinolinyl acrylate (QA) to prepare the PET grafted with QA (PET‐Q). The surface‐modified PET was characterized by attenuated total reflection Fourier transform infrared spectroscopy (ATR‐FTIR) and X‐ray photoelectron spectroscopy (XPS). The introduction of QA to the PET surface was confirmed by observing the presence of nitrogen in the XPS survey scan and high‐resolution spectra. The amount of QA grafted on to the PET surface as measured by the gravimetric method was about 5.2 μg cm −2 . The antibacterial activity of the surface‐modified PET texture was investigated by using a shake‐flask and an inhibition zone test method. After 6 h of shaking, the PET grafted with QA showed the inhibition (91%) of the growth of the gram‐positive microorganism, S. aureus . Even after laundering ten times, an effectiveness of the inhibition was found. However, little inhibition was shown with the gram‐negative microorganism, K. pneumoniae . © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 101: 863–868, 2006