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dc.contributor.authorPérez Camargo, Ricardo Arpad
dc.contributor.authorArandia, Idoia
dc.contributor.authorSafari, Maryam
dc.contributor.authorCavallo, Dario
dc.contributor.authorLotti, Nadia
dc.contributor.authorSoccio, Michelina
dc.contributor.authorMüller Sánchez, Alejandro Jesús
dc.identifier.citationEuropean Polymer Journal 101 : 233–247 (2018)es_ES
dc.description.abstractIsodimorphic random copolyesters are intriguing polymeric materials that can crystallize in their entire composition range, despite the random distribution of comonomer units along their chains. This behavior stems from the relatively similar chemical repeating units of the parent homopolymers. In this feature article, we review our recent works on isodimorphic aliphatic copolyesters, and extract general trends in the framework of the literature. Isodimorphic behavior is a complex phenomenon driven by comonomer partition within the crystalline unit cells formed. These copolyesters crystallize in the entire composition range displaying a pseudo-eutectic behavior when their melting points are plotted as a function of composition. Two crystalline phases, which resembled the crystalline structures of the parent homopolymers, are formed, depending on the considered composition range. The unit cell dimensions of the parent homopolymers change, as a consequence of the inclusion of co-units. At the pseudo eutectic point or pseudo-eutectic region, two crystalline phases can co-exist and their formation strongly depends on thermal history. In this case, double crystalline random copolyesters with two melting points and mixed double-crystalline spherulites can be obtained. The exact composition of the pseudo-eutectic point, the level of comonomer inclusion and the crystallinity degrees cannot be easily predicted by the copolyester chemical structure and composition. These are important issues for further future studies, as well as the quantitative determination of comonomer inclusion in the generated crystalline phases. The extraordinary variation of thermal properties, morphology and crystallinity that isodimorphic random copolyesters display as a function of composition, allows to conveniently tailor their biodegradation, permeability to gases and mechanical properties.es_ES
dc.description.sponsorshipR.A.P-C. and M.S acknowledge the support of their fellowships by POLYMAT Basque Center for Macromolecular Design and Engineering. I.A. acknowledges the fellowship granted by the University of the Basque Country UPV/EHU. The UPV/EHU team gratefully acknowledge the support of MINECO through grant MAT2017-83014-C2-1-P. We also gratefully acknowledge the support of the EU through the H2020-MSCA-RISE-2017-778092 project.es_ES
dc.subjectrandom aliphatices_ES
dc.subjectdouble-crystalline random copolymerses_ES
dc.subjectrate-dependent crystallizationes_ES
dc.subjectcomonomer exclusion/inclusiones_ES
dc.titleCrystallization of isodimorphic aliphatic random copolyesters: pseudo-eutectic behavior and double-crystalline materialses_ES
dc.contributor.funderEuropean Comission
dc.departamentoesCiencia y tecnología de polímeroses_ES
dc.departamentoeuPolimeroen zientzia eta teknologiaes_ES

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