Show simple item record

dc.contributor.authorMaiti, Binoy
dc.contributor.authorAbramov, Alex
dc.contributor.authorFranco, Lourdes
dc.contributor.authorPuiggalí, Jordi
dc.contributor.authorEnshaei, Hamidreza
dc.contributor.authorAlemán, Carlos
dc.contributor.authorDíaz Díaz, David
dc.date.accessioned2020-09-22T12:01:37Z
dc.date.available2020-09-22T12:01:37Z
dc.date.issued2020
dc.identifier.urihttp://riull.ull.es/xmlui/handle/915/21294
dc.description.abstractThis article describes the design and synthesis of a new series of hydrogel membranes composed of trialkyne derivatives of glycerol ethoxylate and bisphenol A diazide (BA-diazide) or diazide-terminated PEG600 monomer via a Cu(I)-catalyzed photoclick reaction. The water-swollen hydrogel membranes display thermoresponsive actuation and their lower critical solution temperature (LCST) values are determined by differential scanning calorimetry. Glycerol ethoxylate moiety serves as the thermoresponsive component and hydrophilic part, while the azide-based component acts as the hydrophobic comonomer and most likely provides a critical hydrophobic/hydrophilic balance contributing also to the significant mechanical strength of the membranes. These hydrogels exhibit a reversible shape-memory effect in response to temperature through a defined phase transition. The swelling and deswelling behavior of the membranes are systematically examined. Due to the click nature of the reaction, easy availability of azide and alkyne functional-monomers, and the polymer architecture, the glass transition temperature (Tg) is easily controlled through monomer design and crosslink density by varying the feed ratio of different monomers. The mechanical properties of the membranes are studied by universal tensile testing measurements. Moreover, the hydrogels show the ability to absorb a dye and release it in a controlled manner by applying heat below and above the LCST.es_ES
dc.description.sponsorshipUniversität Regensburges_ES
dc.description.sponsorshipAgència de Gestió d’Ajuts Universitaris i de Recercaes_ES
dc.description.sponsorshipB. Braun Surgical, S.A.es_ES
dc.description.sponsorshipMinisterio de Ciencia, Innovación y Universidadeses_ES
dc.language.isoenes_ES
dc.publisherWileyes_ES
dc.relation.ispartofseriesAdvanced Functional Materials, 2020, V. 30, n. 24;
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.titleThermoresponsive Shape-Memory Hydrogel Actuators Made by Phototriggered Click Chemistryes_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.identifier.doi10.1002/adfm.202001683
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses_ES
dc.subject.keywordhydrogelses_ES
dc.subject.keywordmembraneses_ES
dc.subject.keywordphotoclickes_ES
dc.subject.keywordpolymerses_ES
dc.subject.keywordshape-memoryes_ES
dc.subject.keywordthermoresponsivees_ES
dc.subject.keywordhidrogeleses_ES
dc.subject.keywordmembranases_ES
dc.subject.keywordpolímeroses_ES
dc.type.hasVersioninfo:eu-repo/semantics/publishedVersiones_ES


Files in this item

This item appears in the following Collection(s)

  • DQUOR. Química Orgánica
    Documentos de investigación (artículos, libros, capítulos de libros, ponencias...) publicados por investigadores del Departamento de Química Orgánica

Show simple item record

Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivatives 4.0 Internacional