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dc.contributor.authorCalvo Correas, Tamara
dc.contributor.authorGabilondo López, Nagore
dc.contributor.authorAlonso Varona, Ana Isabel
dc.contributor.authorPalomares Casado, Teodoro
dc.contributor.authorCorcuera Maeso, María Ángeles
dc.contributor.authorEceiza Mendiguren, María Aranzazu
dc.date.accessioned2024-02-07T22:43:27Z
dc.date.available2024-02-07T22:43:27Z
dc.date.issued2016-03-25
dc.identifier.citationEuropean Polymer Journal 78 : 253-263 (2016)es_ES
dc.identifier.issn0014-3057
dc.identifier.issn1873-1945
dc.identifier.urihttp://hdl.handle.net/10810/64765
dc.description.abstractBiobased crosslinked polyurethanes were synthesized and characterized as shape-memory polymers. Both the macrodiol and the diisocyanate were derived from renewable sources; the first one from castor oil, and the second one from l-lysine amino acid. The influence of component molar ratios, crosslink density and maximum elongation on the shape-memory properties was analyzed. The thermal analysis showed that polyurethanes were microphase separated. Though the study of the shape-memory properties, it was seen that shape-memory was influenced by crosslink density. A higher crosslink density led to a greater shape recovery, since crosslinks are the responsible for memorizing the shape of the material. With the increase of maximum elongation, both shape fixity and recovery decreased due to higher amount of crosslink net points were broken. Moreover, the synthesized polyurethanes showed its potential to be used in biomedical applications, according to the preliminary in vitro cytotoxicity assays.es_ES
dc.description.sponsorshipFinancial support from the Basque Government (IT-776-13) and from the Spanish Ministry of Economy and Competitiveness (MINECO) (MAT2013-43076-R) is gratefully acknowledged. We also wish to acknowledge the ‘‘Macrobehavior-Mesostructure-Nanotechnology” SGIker unit from the University of the Basque Country, for their technical support. T.C.-C. thanks the University of the Basque Country for Ph.D. grant (PIF/UPV/12/200)
dc.language.isoenges_ES
dc.relationinfo:eu-repo/grantAgreement/MINECO/MAT2013-43076-R
dc.rightsinfo:eu-repo/semantics/restrictedAccesses_ES
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.titleShape-memory properties of crosslinked biobased polyurethaneses_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.rights.holder© 2016 Elsevier under CC BY-NC-ND license
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S0014305716301318
dc.identifier.doi10.1016/j.eurpolymj.2016.03.030
dc.departamentoesIngeniería Química y del Medio Ambiente
dc.departamentoeuIngeniaritza Kimikoa eta Ingurumenaren Ingeniaritza


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© 2016 Elsevier under CC BY-NC-ND license
Except where otherwise noted, this item's license is described as © 2016 Elsevier under CC BY-NC-ND license