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Surface modification of low‐density polyethylene films by UV‐induced graft copolymerization with a fluorescent monomer
Author(s) -
Wu J. Z.,
Kang E. T.,
Neoh K. G.,
Wu P.L.,
Liaw D. J.
Publication year - 2001
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.1244
Subject(s) - low density polyethylene , copolymer , monomer , x ray photoelectron spectroscopy , polymer chemistry , polyethylene , materials science , methyl methacrylate , polymer , surface modification , fluorescence , methacrylate , chemical engineering , composite material , physics , quantum mechanics , engineering
Surface modification of argon plasma–pretreated low‐density polyethylene (LDPE) film via UV‐induced graft copolymerization with a fluorescent monomer, (pyrenyl)methyl methacrylate (Py)MMA, was carried out. The chemical composition and morphology of the (Py)MMA‐graft‐copolymerized LDPE [(Py)MMA ‐g‐ LDPE] surfaces were characterized, respectively, by X‐ray photoelectron spectroscopy (XPS) and by atomic force microscopy (AFM). The concentration of the surface‐grafted (Py)MMA polymer increased with Ar plasma pretreatment time and UV graft copolymerization time. The photophysical properties of the (Py)MMA ‐g‐ LDPE surfaces were measured by fluorescence spectroscopy. After graft copolymerization with the fluorescent monomer, the surface of the LDPE film was found to have incorporated new and unique functionalities. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 80: 1526–1534, 2001