Show simple item record

dc.contributor.authorCobos Zamarreño, Mónica ORCID
dc.contributor.authorFernández Fernández, María Jesús ORCID
dc.contributor.authorFernández Fernández, María Dolores ORCID
dc.date.accessioned2019-01-14T13:01:43Z
dc.date.available2019-01-14T13:01:43Z
dc.date.issued2018-12-06
dc.identifier.citationNanomaterials 8(12) : (2018) // Article ID 1013es_ES
dc.identifier.issn2079-4991
dc.identifier.urihttp://hdl.handle.net/10810/30795
dc.description.abstractThe enhanced properties of polymer nanocomposites as compared with pure polymers are only achieved in the presence of well-dispersed nanofillers and strong interfacial adhesion. In this study, we report the preparation of nanocomposite films based on poly(vinyl alcohol) (PVA) filled with well dispersed graphene sheets (GS) by in situ reduction of graphene oxide (GO) dispersed in PVA solution using ascorbic acid (L-AA) as environmentally friendly reductant. The combined effect of GS content and glycerol as plasticizer on the structure, thermal, mechanical, water absorption, and water barrier properties of PVA/GS nanocomposite films is studied for the first time. Higher glass transition temperature, lower crystallinity, melting, and crystallization temperature, higher mechanical properties, and remarkable improvement in the thermal stability compared to neat PVA are obtained as a result of strong interfacial interactions between GS and PVA by hydrogen bonding. PVA/GS composite film prepared by ex situ process is more brittle than its in situ prepared counterpart. The presence of GS improves the water barrier and water resistance properties of nanocomposite films by decreasing water vapor permeability and water absorption of PVA. This work demonstrates that the tailoring of PVA/GS nanocomposite properties is enabled by controlling GS and glycerol content. The new developed materials, particularly those containing plasticizer, could be potential carriers for transdermal drug delivery.es_ES
dc.description.sponsorshipSAIOTEK 2013 S-PE13UN004 Basque Governmentes_ES
dc.language.isoenges_ES
dc.publisherMDPIes_ES
dc.rightsinfo:eu-repo/semantics/openAccesses_ES
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/es/*
dc.subjectglyceroles_ES
dc.subjectgraphenees_ES
dc.subjectgraphene oxide green reductiones_ES
dc.subjectnanocompositeses_ES
dc.subjectpoly(vinyl alcohol)es_ES
dc.titleGraphene Based Poly(Vinyl Alcohol) Nanocomposites Prepared by In Situ Green Reduction of Graphene Oxide by Ascorbic Acid: Influence of Graphene Content and Glycerol Plasticizer on Propertieses_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.rights.holderThis is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).es_ES
dc.rights.holderAtribución 3.0 España*
dc.relation.publisherversionhttps://www.mdpi.com/2079-4991/8/12/1013es_ES
dc.identifier.doi10.3390/nano8121013
dc.departamentoesCiencia y tecnología de polímeroses_ES
dc.departamentoeuPolimeroen zientzia eta teknologiaes_ES


Files in this item

Thumbnail
Thumbnail

This item appears in the following Collection(s)

Show simple item record

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
Except where otherwise noted, this item's license is described as This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).