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gamma-Alumina Modification with Long Chain Carboxylic Acid Surface Nanocrystals for Biocompatible Polysulfone Nanocomposites

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dc.affiliation.dptoUC3M. Departamento de Ciencia e Ingeniería de Materiales e Ingeniería Químicaes
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Polímeros y Compositeses
dc.contributor.authorAnaya Perales, Susana
dc.contributor.authorSerrano Prieto, Berna
dc.contributor.authorHerrero Ayestaran, Berta
dc.contributor.authorCervera, Alberto
dc.contributor.authorBaselga Llidó, Juan
dc.date.accessioned2017-12-12T10:47:44Z
dc.date.available2017-12-12T10:47:44Z
dc.date.issued2014-07-27
dc.description.abstractHigh performance polysulfone/γ-alumina biocompatible nanocomposites are reported for the first time and the effects of γ-alumina surface modification are explored. We show that some fatty acids chemisorb over the surface of γ-alumina forming nanosized self-assembled structures. These structures present thermal transitions at high temperatures, 100 ºC higher than the melting temperatures of the pure acids, and are further shifted about 50 ºC in the presence of polysulfone. The chemistry involved in the chemisorption is mild and green meeting the stringent bio sanitary protocols for biocompatible devices. It has been found that the self-assembled structures increase mechanical strength by about 20% despite the foreseeable lack of strong particle matrix interactions, which manifests as small variations in both the glass transition temperature and the Young's modulus. Electron microscopy observation of fractured surfaces has revealed that some acids induce an extended region of influence around the nanoparticles and this fact has been used to explain the enhancement of mechanical strength.en
dc.description.sponsorshipThis work was supported by granst Nanomod (MAT2010-17091) from the Spanish Ministerio de Economía y Competitividad and NANOBRAK (04-AEC0810-000056/2008), as well as to the INTERFASES consortium (Comunidad Autónoma de Madrid, Spain).en
dc.format.extent9
dc.format.mimetypeapplication/pdf
dc.identifier.bibliographicCitationAnaya, S., Serrano, B., Herrero, B., Cervera, A. & Baselga , J. (2014). γ-Alumina Modification with Long Chain Carboxylic Acid Surface Nanocrystals for Biocompatible Polysulfone Nanocomposites. ACS Applied Materials & Interfaces, 6 (16), pp. 14460–14468.en
dc.identifier.doihttps://doi.org/10.1021/am503744z
dc.identifier.issn1944-8244
dc.identifier.publicationfirstpage14460
dc.identifier.publicationissue16
dc.identifier.publicationlastpage14468
dc.identifier.publicationtitleACS Applied Materials & Interfacesen
dc.identifier.publicationvolume6
dc.identifier.urihttps://hdl.handle.net/10016/26053
dc.identifier.uxxiAR/0000015586
dc.language.isoeng
dc.publisherAmerican Chemical Society (ACS)en
dc.relation.projectIDGobierno de España. MAT2010-17091es
dc.relation.projectIDGobierno de España. 04-AEC0810-000056/2008es
dc.rights© American Chemical Society, 2014
dc.rights.accessRightsopen access
dc.subject.ecienciaMaterialeses
dc.subject.ecienciaQuímicaes
dc.subject.otherAluminaen
dc.subject.otherFatty acidsen
dc.subject.otherNanocompositesen
dc.subject.otherPolysulfoneen
dc.subject.otherGlass-transition temperatureen
dc.subject.otherMechanical-propertiesen
dc.subject.otherPolymer compositesen
dc.subject.otherHomopolymer matrixen
dc.subject.otherBehavioren
dc.subject.otherNanoparticlesen
dc.subject.otherMorphologyen
dc.subject.otherInterfaceen
dc.subject.otherFailureen
dc.subject.otherSilicaen
dc.titlegamma-Alumina Modification with Long Chain Carboxylic Acid Surface Nanocrystals for Biocompatible Polysulfone Nanocompositesen
dc.typeresearch article*
dc.type.hasVersionAM*
dspace.entity.typePublication
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