Artículos
Título:
Surface Functionalization of Polyolefin Films Via UV-Induced Photografting of Acrylic Acid. Topographical Characterization and Ability for Binding Antifungal Agents.
Autor/es:
VANINA COSTAMAGNA, DANIEL WUNDERLIN, MAITE LARRAÑAGA, IÑAKI MONDRAGÓN AND MIRIAM STRUMIA.
Revista:
Journal Applied Polymer Science
Referencias:
Lugar: USA; Año: 2006 vol. 102 p. 2253 - 2253
Resumen:
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ABSTRACT: The photoinduced graft copolymerization
of acrylic acid with ultraviolet radiation onto films of poly
(vinyl chloride), polypropylene, and polyethylene was studied.
Benzophenone was used as the initiator for most of
the experiments performed. The percentage of grafting
was determined by gravimetric measurements, and the
characterization of the grafted films was carried out by
chemical analysis (Fourier transform infrared spectroscopy,
volumetric titration, and dye adsorption). In all samples,
the grafted yield increased with the ultraviolet exposure
time. High levels of grafting were obtained at room temperature.
In addition, optical and atomic force microscopy