Mostra i principali dati dell'item

dc.contributor.authorTrigo López, Miriam 
dc.contributor.authorVallejos Calzada, Saúl 
dc.contributor.authorReglero Ruiz, José Antonio 
dc.contributor.authorRamos Rodríguez, Cipriano 
dc.contributor.authorBeltrán Calvo, Sagrario 
dc.contributor.authorGarcía García, Félix Clemente 
dc.contributor.authorGarcía Pérez, José Miguel 
dc.date.accessioned2019-12-03T11:58:08Z
dc.date.available2019-12-03T11:58:08Z
dc.date.issued2019-11
dc.identifier.issn0032-3861
dc.identifier.urihttp://hdl.handle.net/10259/5193
dc.description.abstractThe use of supercritical CO2 (ScCO2) has been established as a standard technique to produce micro- and nanocellular polymers with controlled morphologies and cell sizes between 500 nm and several microns. However, overcoming the gap between micro and nanocellular polymers implies the use of long saturation times (up to several days) and low temperatures (below 0 °C) combined with high saturation pressures (above 30 MPa). This work presents a different approach to obtain microporous poly (methyl methacrylate) (PMMA) structures with controlled morphologies using a physical procedure employing ionic liquids that are mixed in solution with PMMA. The ionic liquid can produce interesting fine microporous materials simply by being removed with distilled water. The work compares the two fabrication methods previously mentioned to critically analyze the benefits and drawbacks of each preparation route. The method in this paper opens the possibility to obtain microporous polymers by employing ionic liquids, thus reducing the time of processing, avoiding specific foaming equipment and broadening the applicability of crosslinked and semi crystalline polymers. Low velocity tensile test results are also presented to point out the improvement in the mechanical parameters of microporous films obtained from ionic liquids compared to those of films foamed using ScCO2.en
dc.format.mimetypeapplication/pdf
dc.language.isoeng
dc.publisherElsevieres
dc.relation.ispartofPolymer. 2019, V. 183, n. 21, 121867
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectIonic liquiden
dc.subjectScCO2en
dc.subjectMicroporous filmen
dc.subjectPMMAen
dc.subject.otherQuímica orgánicaes
dc.subject.otherChemistry, Organicen
dc.titleFabrication of microporous PMMA using ionic liquids: An improved route to classical ScCO2 foaming processen
dc.typeinfo:eu-repo/semantics/article
dc.rights.holderAttribution-NonCommercial-NoDerivatives 4.0 Internacional*
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess
dc.relation.publisherversionhttps://doi.org/10.1016/j.polymer.2019.121867
dc.identifier.doi10.1016/j.polymer.2019.121867
dc.type.hasVersioninfo:eu-repo/semantics/acceptedVersion


Files in questo item

Thumbnail

Questo item appare nelle seguenti collezioni

Mostra i principali dati dell'item