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Fibrillar morphologies of hydrogels obtained from a lamellar medium

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dc.contributor.authorRenamayor, Carmen S.
dc.contributor.authorEsteban Pacios, María Isabel
dc.date.accessioned2024-05-21T12:52:48Z
dc.date.available2024-05-21T12:52:48Z
dc.date.issued2011-10-17
dc.description.abstractHydrogels are suitable for multiple applications and their properties are strongly dependent on their morphology. Sponge-like morphologies are obtained in conventional hydrogels when the polymerization is performed in isotropic media. Fibrillar morphologies imparting new properties to hydrogels are expected when the reacting medium is anisotropic. Here, we synthesize such fibrillar hydrogels by polymerization in a lamellar medium formed by 1,4- bis(2-ethylhexyl)sodium sulfosuccinate (AOT) and water. At high surfactant content this objective is achieved, and the thickness of the obtained fibrils (0.1-1 μm) can be correlated with the physical properties of the lamellar system. At intermediate AOT concentrations, the morphology is hierarchical, with primary closed pores containing a secondary fibrillar structure that fills the pores. For low AOT concentrations, the crosslinking process is unhindered, and the hydrogels are mechanically consistent with a sponge-like morphology having large (10-102 μm) void pores. The time evolution of the mesophase as polymerization advances is followed by small angle X-ray scattering.es
dc.description.versionversión original
dc.identifier.doi10.1016/j.eurpolymj.2011.10.007
dc.identifier.issn0014-3057, EISSN: 1873-1945
dc.identifier.urihttps://hdl.handle.net/20.500.14468/19328
dc.language.isoen
dc.publisherElsevier
dc.relation.centerFacultad de Ciencias
dc.relation.departmentCiencias y Técnicas Fisicoquímicas
dc.rightsAtribución-NoComercial-SinDerivadas 4.0 Internacional
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0
dc.subject.keywordshydrogel
dc.subject.keywordsfibrillar morphology
dc.subject.keywordslyotropic medium
dc.titleFibrillar morphologies of hydrogels obtained from a lamellar mediumes
dc.typeartículoes
dc.typejournal articleen
dspace.entity.typePublication
relation.isAuthorOfPublicationc62d7dd0-f124-429a-92f3-e75788c5d7dd
relation.isAuthorOfPublication.latestForDiscoveryc62d7dd0-f124-429a-92f3-e75788c5d7dd
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