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Dual Xanthan Gum/Poly(vinyl acetate) or Alkyl-Functionalized Poly(vinyl alcohol) Films as Models for Advanced Coatings

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Dual Xanthan Gum/Poly(vinyl acetate) or Alkyl-Functionalized Poly(vinyl alcohol) Films as Models for Advanced Coatings

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dc.contributor.author Vaca Puga, Alberto es_ES
dc.contributor.author Garcia-Valls, Ricard es_ES
dc.contributor.author Fernandez-Prieto, Susana es_ES
dc.contributor.author Smets, Johan es_ES
dc.contributor.author York, David es_ES
dc.date.accessioned 2016-10-11T11:51:28Z
dc.date.available 2016-10-11T11:51:28Z
dc.date.issued 2014-10-05
dc.identifier.issn 0021-8995
dc.identifier.uri http://hdl.handle.net/10251/71620
dc.description.abstract [EN] Double-layer films, prepared by casting films of xanthan gum (XG), and subsequently poly(vinyl acetate) (PVAc) onto the former, are reported. The resulting XG/PVAc films provide high protection as coatings to a bleaching agent, 6-(phthalimido)peroxyhexanoic acid, in liquid detergents, due to the combined roles of the outer PVAc layer as water-barrier and the inner XG layer as water-sink. PVAc films cast from either homogeneous solutions in acetone or aqueous dispersions were used; the stabilities exerted by the former were markedly superior. For comparison, poly(vinyl alcohol) (PVA) was also used as outer wall material, resulting in much lower protection due to its hydrophilicity. Functionalization (silylation or acetalyzation) of PVA films is also suggested as a means to decrease the surface hydrophilicity of the material. The dual hydrophilic-hydrophobic films presented herein serve as models for advanced coatings in (micro) encapsulation processes, owing to the straightforward study of their morphology and transport phenomena. (C) 2014 Wiley Periodicals, Inc. es_ES
dc.language Inglés es_ES
dc.publisher Wiley es_ES
dc.relation.ispartof Journal of Applied Polymer Science es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Coatings es_ES
dc.subject Films es_ES
dc.subject Grafting es_ES
dc.subject Interfaces es_ES
dc.subject Membranes es_ES
dc.subject Surfaces es_ES
dc.subject.classification QUIMICA ANALITICA es_ES
dc.title Dual Xanthan Gum/Poly(vinyl acetate) or Alkyl-Functionalized Poly(vinyl alcohol) Films as Models for Advanced Coatings es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1002/app.40870
dc.relation.projectID info:eu-repo/grantAgreement/EC/FP7/251298 es_ES
dc.rights.accessRights Cerrado es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto Universitario Mixto de Tecnología Química - Institut Universitari Mixt de Tecnologia Química es_ES
dc.description.bibliographicCitation Vaca Puga, A.; Garcia-Valls, R.; Fernandez-Prieto, S.; Smets, J.; York, D. (2014). Dual Xanthan Gum/Poly(vinyl acetate) or Alkyl-Functionalized Poly(vinyl alcohol) Films as Models for Advanced Coatings. Journal of Applied Polymer Science. 131(19):1-10. doi:10.1002/app.40870 es_ES
dc.description.accrualMethod Senia es_ES
dc.relation.publisherversion http://dx.doi.org/10.1002/app.40870 es_ES
dc.description.upvformatpinicio 1 es_ES
dc.description.upvformatpfin 10 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 131 es_ES
dc.description.issue 19 es_ES
dc.relation.senia 280618 es_ES
dc.contributor.funder European Commission


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