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dc.contributor.author
Kretzmann Belmonte, Guilherme  
dc.contributor.author
Charles, German  
dc.contributor.author
Strumia, Miriam Cristina  
dc.contributor.author
Weibel, Daniel  
dc.date.available
2017-06-06T21:51:18Z  
dc.date.issued
2016-09  
dc.identifier.citation
Kretzmann Belmonte, Guilherme; Charles, German; Strumia, Miriam Cristina; Weibel, Daniel; Permanent hydrophilic modification of polypropylene and poly(vinylalcohol) films by vacuum ultraviolet radiation; Elsevier Science; Applied Surface Science; 382; 9-2016; 93-100  
dc.identifier.issn
0169-4332  
dc.identifier.uri
http://hdl.handle.net/11336/17652  
dc.description.abstract
Polypropylene (PP) and Poly(vinyl alcohol) (PVA) both synthetics polymers but one of them biodegrad-able, were surface modified by vacuum ultraviolet (VUV) irradiation. After VUV irradiation in an inertnitrogen atmosphere, the films were exposed to oxygen gas. The treated films were characterized bywater contact angle measurements (WCA), optical profilometry, FTIR-ATR, XPS, UPS and NEXAFS tech-niques. PP and PVA VUV-treated films reached superhydrophilic conditions (WCAs <10◦) in about 30 minof irradiation under our experimental conditions. It was observed that when the WCAs reached about35?40◦the hydrophilicity was permanent in both polymers. These results contrasted with typical plasmatreatments were a rapid hydrophobic recovery with aging time is usually observed. UPS and XPS datashowed the presence of new functionalities on the PP and PVA surfaces that were assigned to COO, C O,CO and C C functional groups. Finally, grafting of styrene (ST) as a typical monomer was tested on PPfilms. It was confirmed that only in the VUV irradiated region an efficient grafting of ST or polymerized STwas found. Outside the irradiated regions no ST grafted was observed. Our results showed the potentialuse of VUV treatment for surface modification and processing of polymers which lack chromophores inthe UV region  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Elsevier Science  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/  
dc.subject
Polypropylene  
dc.subject
Poly(Vinyl Alcohol)  
dc.subject
Grafting Suface  
dc.subject
Vacuum Ultraviolet  
dc.subject.classification
Físico-Química, Ciencia de los Polímeros, Electroquímica  
dc.subject.classification
Ciencias Químicas  
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CIENCIAS NATURALES Y EXACTAS  
dc.title
Permanent hydrophilic modification of polypropylene and poly(vinylalcohol) films by vacuum ultraviolet radiation  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2017-06-06T14:42:55Z  
dc.journal.volume
382  
dc.journal.pagination
93-100  
dc.journal.pais
Países Bajos  
dc.journal.ciudad
Amsterdam  
dc.description.fil
Fil: Kretzmann Belmonte, Guilherme. Universidade Federal do Rio Grande do Sul. Instituto de Química; Brasil  
dc.description.fil
Fil: Charles, German. Universidad Nacional de Cordoba. Facultad de Cs.quimicas. Centro de Quimica Aplicada; Argentina  
dc.description.fil
Fil: Strumia, Miriam Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Departamento de Química Orgánica; Argentina  
dc.description.fil
Fil: Weibel, Daniel. Universidade Federal do Rio Grande do Sul. Instituto de Química; Brasil  
dc.journal.title
Applied Surface Science  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0169433216308418  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1016/j.apsusc.2016.04.091