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dc.contributor.authorDíaz Andrade, Angélica María
dc.contributor.authorFranco García, María Lourdes
dc.contributor.authorCasas Becerra, María Teresa
dc.contributor.authorValle Mendoza, Luis Javier del
dc.contributor.authorAymami Bofarull, Juan
dc.contributor.authorOlmo Osuna, Cristian
dc.contributor.authorPuiggalí Bellalta, Jordi
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Química
dc.date.accessioned2015-04-14T11:42:48Z
dc.date.created2014-10-15
dc.date.issued2014-10-15
dc.identifier.citationDiaz, A. [et al.]. Preparation of micro-molded exfoliated clay nanocomposites by means of ultrasonic technology. "Journal of polymer research", 15 Octubre 2014, vol. 21, núm. 11.
dc.identifier.issn1022-9760
dc.identifier.urihttp://hdl.handle.net/2117/27313
dc.description.abstractUltrasound micro-molding technology has been tested as a new method to get polymer/clay nanocomposites. Biodegradable polylactide (PLA) and poly (nona-methylene azelate) (PE99) have been used as polymer matrices, whereas different silicate clays have been assayed. The new technology is able to get specimens without evidences of degradation during processing. Only the use of organo-modified clays could give rise to a slight molecular weight decrease when the poly (alkylene dicarboxylate) sample was considered. Ultrasonic micro-molding has revealed effective to get directly nanocomposites with the final form required for a selected application, a homogeneous clay distribution up to a load of 6 wt-% and more interestingly exfoliated structures without being necessary the use of a compatibilizer agent between the organic polymer and the inorganic silicate clay. Transmission electron micrographs and X-ray diffraction profiles revealed exfoliated structure when N757, C20A, C25A, and N848 clays were employed.; Crystallization behavior of exfoliated PLA nanocomposites was highly peculiar since clay particles had an antinucleating effect that decreased the overall crystallization rate respect to the neat polymer. In addition, the incorporation of layers into growing spherulites increased the crystal growth rate. A typical crystallization effect was on the contrary observed for nanocomposites derived from the poly (alkylene dicarboxylate) sample.
dc.language.isoeng
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Enginyeria química
dc.subject.otherUltrasound micro-molding technology
dc.subject.otherNanocomposites
dc.subject.otherExfoliated structures
dc.subject.otherPolylactide
dc.subject.otherPoly (alkylene dicarboxylate)
dc.subject.otherCrystallization kinetics
dc.subject.otherPOLYLACTIDE/LAYERED SILICATE NANOCOMPOSITE
dc.subject.otherCRYSTALLIZATION BEHAVIOR
dc.subject.otherTHERMAL-DEGRADATION
dc.subject.otherMORPHOLOGY
dc.subject.otherCONFORMATION
dc.subject.otherPOLYSTYRENE
dc.subject.otherSCAFFOLDS
dc.subject.otherMIXTURES
dc.subject.otherACID)
dc.titlePreparation of micro-molded exfoliated clay nanocomposites by means of ultrasonic technology
dc.typeArticle
dc.subject.lemacUltrasons
dc.subject.lemacNanocompòsits (Materials)
dc.contributor.groupUniversitat Politècnica de Catalunya. PSEP - Polimers Sintètics: Estructura i Propietats. Polimers Biodegradables
dc.contributor.groupUniversitat Politècnica de Catalunya. MACROM - Cristal·lografia, Estructura i Funció de Macromolècules Biològiques
dc.identifier.doi10.1007/s10965-014-0584-3
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttp://link.springer.com/article/10.1007%2Fs10965-014-0584-3
dc.rights.accessRestricted access - publisher's policy
local.identifier.drac15578429
dc.description.versionPostprint (published version)
dc.date.lift10000-01-01
local.citation.authorDiaz, A.; Franco, M.; Casas, M.; del Valle, LJ.; Aymami, J.; Olmo, C.; Puiggali, J.
local.citation.publicationNameJournal of polymer research
local.citation.volume21
local.citation.number11


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