Water sorption by poly(tetrahydrofurfuril methacrylate)'s

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dc.contributor.authorSanchis, Maria J.
dc.contributor.authorDiaz Calleja, Ricardo
dc.contributor.authorGarcia Bernabe, Abel
dc.contributor.authorAlegria, Luz
dc.contributor.authorGargallo, Ligia
dc.contributor.authorRadic, Deodato
dc.date.accessioned2024-01-10T12:10:57Z
dc.date.available2024-01-10T12:10:57Z
dc.date.issued2008
dc.description.abstractPolymers consisting of poly(heterocyclic methacrylate)s are considered as potential materials for clinical applications such as drug delivery and cartilage repair. Much of the success of these systems has been attributed to the complex nature of their water sorption properties. Dielectric permittivity is very sensitive to water sorption. Dielectric relaxation spectroscopy studies have been carried out on two heterocyclic poly(methacrylate)s: poly(tetrahydrofurfuryl methacrylate) (PTHFMA) and poly (3-methyl tetrahydrofurfuryl methacrylate) (P3MTHFMA). The isochrones representing the dielectric losses show in both cases high conductivity at low frequencies and high temperatures. In PTHFMA two conductive processes are observed, which can be associated to the existence of two types of water sorption. These effects have been analyzed and were removed from the dielectric spectra by using classical empirical equations. Both polymers show ostensible alpha-relaxation centered in the vicinity of 350 K at 10(0) Hz. This relaxation was analyzed by means of the empirical Havriliak-Negami equation. Reminiscent beta-relaxation could also exist. Both polymers present well defined gamma and delta subglass absorptions at approximately 120 K, 160 K for PTHFMA and 125 K, 163 K for P3MTHFMA, at 10(0) Hz, associated to local intramolecular relaxations in side groups. These relaxations were analyzed using semiempirical symmetric model. (C) 2007 Wiley Periodicals, Inc.
dc.fechaingreso.objetodigital2024-04-12
dc.format.extent12 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1002/polb.21347
dc.identifier.eissn1099-0488
dc.identifier.issn0887-6266
dc.identifier.urihttps://doi.org/10.1002/polb.21347
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/76619
dc.identifier.wosidWOS:000252473100001
dc.information.autorucQuímica;Alegría L;S/I;3579
dc.information.autorucQuímica;Gargallo L;S/I;98194
dc.information.autorucQuímica;Radic D;S/I;49367
dc.issue.numero2
dc.language.isoen
dc.nota.accesocontenido parcial
dc.pagina.final120
dc.pagina.inicio109
dc.publisherWILEY
dc.revistaJOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS
dc.rightsacceso restringido
dc.subjectcharge transport
dc.subjectconductivity
dc.subjectdielectric properties
dc.subjectdrug delivery systems
dc.subjectrelaxation
dc.subjectLOW-FREQUENCY DISPERSION
dc.subjectHETEROCYCLIC METHACRYLATES
dc.subjectCLINICAL-APPLICATIONS
dc.subjectPOLYMER SYSTEM
dc.subjectREPAIR TISSUE
dc.subjectRELEASE
dc.subjectDRUG
dc.subjectREGENERATION
dc.subjectVISCOSITY
dc.subjectDYNAMICS
dc.subject.ods03 Good Health and Well-being
dc.subject.odspa03 Salud y bienestar
dc.titleWater sorption by poly(tetrahydrofurfuril methacrylate)'s
dc.typeartículo
dc.volumen46
sipa.codpersvinculados3579
sipa.codpersvinculados98194
sipa.codpersvinculados49367
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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