Dielectric properties of poly(vinyl alcohol) hydrogels prepared by freezing/thawing technique

The dielectric behavior of poly(vinyl alcohol) –PVA– crosslinked hydrogels obtained by the repeated freezing/ thawing (F/T) technique have been investigated by dielectric relaxation spectroscopy (DRS) and differential scanning calorimetry (DSC). The crosslinked polymer is produced by the clustering...

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Autores:
Londoño, M. E. (Martha Elena)
Jaramillo, Juan Manuel
Sabater I Serra, Roser
Vélez, Juan Manuel
Tipo de recurso:
Article of journal
Fecha de publicación:
2012
Institución:
Universidad EIA .
Repositorio:
Repositorio EIA .
Idioma:
eng
OAI Identifier:
oai:repository.eia.edu.co:11190/116
Acceso en línea:
https://repository.eia.edu.co/handle/11190/116
Palabra clave:
REI00195
TECNOLOGÍAS PARA LA SALUD
TECHNOLOGY IN HEALTH
POLYVINYL ALCOHOL
PHARMACEUTICAL SOLUTIONS
SOLUCIONES FARMACÉUTICAS
ALCOHOL POLIVINÍLICO
DIELECTRIC PROPERTIES
HYDROGELS
FREEZING / THAWING
DIELECTRIC SPECTROSCOPY
PROPIEDADES DIELÉCTRICAS
HIDROGELES
CONGELAMIENTO / DESCONGELAMIENTO
ESPECTROSCOPIA
DIELÉCTRICA
Rights
openAccess
License
Derechos Reservados - Universidad EIA, 2020
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dc.title.spa.fl_str_mv Dielectric properties of poly(vinyl alcohol) hydrogels prepared by freezing/thawing technique
dc.title.alternative.spa.fl_str_mv Propriedades dieléctricas de hidrogeis de álcool polivinílico obtidos pela técnica de congelamento/ descongelamento
Propiedades dieléctricas de hidrogeles de alcohol polivinílico obtenidos por la técnica de congelamiento/ descongelamiento
title Dielectric properties of poly(vinyl alcohol) hydrogels prepared by freezing/thawing technique
spellingShingle Dielectric properties of poly(vinyl alcohol) hydrogels prepared by freezing/thawing technique
REI00195
TECNOLOGÍAS PARA LA SALUD
TECHNOLOGY IN HEALTH
POLYVINYL ALCOHOL
PHARMACEUTICAL SOLUTIONS
SOLUCIONES FARMACÉUTICAS
ALCOHOL POLIVINÍLICO
DIELECTRIC PROPERTIES
HYDROGELS
FREEZING / THAWING
DIELECTRIC SPECTROSCOPY
PROPIEDADES DIELÉCTRICAS
HIDROGELES
CONGELAMIENTO / DESCONGELAMIENTO
ESPECTROSCOPIA
DIELÉCTRICA
title_short Dielectric properties of poly(vinyl alcohol) hydrogels prepared by freezing/thawing technique
title_full Dielectric properties of poly(vinyl alcohol) hydrogels prepared by freezing/thawing technique
title_fullStr Dielectric properties of poly(vinyl alcohol) hydrogels prepared by freezing/thawing technique
title_full_unstemmed Dielectric properties of poly(vinyl alcohol) hydrogels prepared by freezing/thawing technique
title_sort Dielectric properties of poly(vinyl alcohol) hydrogels prepared by freezing/thawing technique
dc.creator.fl_str_mv Londoño, M. E. (Martha Elena)
Jaramillo, Juan Manuel
Sabater I Serra, Roser
Vélez, Juan Manuel
dc.contributor.author.spa.fl_str_mv Londoño, M. E. (Martha Elena)
Jaramillo, Juan Manuel
Sabater I Serra, Roser
Vélez, Juan Manuel
dc.subject.lcsh.spa.fl_str_mv REI00195
topic REI00195
TECNOLOGÍAS PARA LA SALUD
TECHNOLOGY IN HEALTH
POLYVINYL ALCOHOL
PHARMACEUTICAL SOLUTIONS
SOLUCIONES FARMACÉUTICAS
ALCOHOL POLIVINÍLICO
DIELECTRIC PROPERTIES
HYDROGELS
FREEZING / THAWING
DIELECTRIC SPECTROSCOPY
PROPIEDADES DIELÉCTRICAS
HIDROGELES
CONGELAMIENTO / DESCONGELAMIENTO
ESPECTROSCOPIA
DIELÉCTRICA
dc.subject.eia.spa.fl_str_mv TECNOLOGÍAS PARA LA SALUD
TECHNOLOGY IN HEALTH
dc.subject.eurovoc.spa.fl_str_mv POLYVINYL ALCOHOL
PHARMACEUTICAL SOLUTIONS
SOLUCIONES FARMACÉUTICAS
ALCOHOL POLIVINÍLICO
dc.subject.keywords.spa.fl_str_mv DIELECTRIC PROPERTIES
HYDROGELS
FREEZING / THAWING
DIELECTRIC SPECTROSCOPY
PROPIEDADES DIELÉCTRICAS
HIDROGELES
CONGELAMIENTO / DESCONGELAMIENTO
ESPECTROSCOPIA
DIELÉCTRICA
description The dielectric behavior of poly(vinyl alcohol) –PVA– crosslinked hydrogels obtained by the repeated freezing/ thawing (F/T) technique have been investigated by dielectric relaxation spectroscopy (DRS) and differential scanning calorimetry (DSC). The crosslinked polymer is produced by the clustering of chains caused by the association of a polar group of the dissolved polymer followed by polymer crystallization. The dielectric spectra obtained from -50 °C to -10 °C show a broad secondary relaxation process associated to local mobility, ß relaxation, which is related to the terminal polar groups (OH). This process is strongly affected by the freezing/thawing cycles applied. The values of tan d are below 1 indicating the dielectric phenomenon is predominant in all samples. The effect of crosslinking PVA on the dynamics of the secondary relaxation process was further analyzed.
publishDate 2012
dc.date.created.spa.fl_str_mv 2012-12
dc.date.submitted.spa.fl_str_mv 2012-09-12
dc.date.accepted.spa.fl_str_mv 2012-08-20
dc.date.accessioned.spa.fl_str_mv 2013-11-06T20:59:15Z
dc.date.available.spa.fl_str_mv 2013-11-06T20:59:15Z
dc.date.issued.spa.fl_str_mv 2013-11-06
dc.type.spa.fl_str_mv Artículo de revista
dc.type.coar.fl_str_mv http://purl.org/coar/resource_type/c_2df8fbb1
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dc.type.content.spa.fl_str_mv Text
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dc.identifier.issn.spa.fl_str_mv ISSN 17941237
dc.identifier.uri.spa.fl_str_mv https://repository.eia.edu.co/handle/11190/116
dc.identifier.bibliographiccitation.spa.fl_str_mv Londoño, M. E., Jaramillo, J. M., Sabater, R., and Vélez, J. M. (2012). Dielectric properties of poly(vinyl alcohol) hydrogels prepared by freezing/thawing technique, Revista EIA, 9 (18). doi: http://hdl.handle.net/11190/116
identifier_str_mv ISSN 17941237
Londoño, M. E., Jaramillo, J. M., Sabater, R., and Vélez, J. M. (2012). Dielectric properties of poly(vinyl alcohol) hydrogels prepared by freezing/thawing technique, Revista EIA, 9 (18). doi: http://hdl.handle.net/11190/116
url https://repository.eia.edu.co/handle/11190/116
dc.language.iso.spa.fl_str_mv eng
language eng
dc.relation.ispartof.spa.fl_str_mv Revista EIA
dc.relation.references.spa.fl_str_mv Abd El-kader, F. H.; Osman, W. H; Mahmoud, K. H. and Basha, M. A. F. (2008). “Dielectric investigations and ac conductivity of polyvinyl alcohol films doped with europium and terbium chloride”. Physica B: Condensed Matter, vol. 403, No. 19-20 (October), pp. 3473-3484.
Awadhia, A.; Patel, S. K. and Agrawal, S. L. (2006). “Dielectric investigations in PVA based gel electrolytes”. Progress in Crystal Growth and Characterization of Materials, vol. 52, No. 1-2 (March- June), pp. 61-68.
Blyte, T. and Bloor, D. Electrical properties of polymers. Cambridge, UK: Cambridge University Press, 2005. 480 p.
Casalini, R. and Roland, C. M. (2010). “Effect of crosslinking on the secondary relaxation in polyvinylethylene”. Journal of Polymer Science. Part B: Polymer Physics, vol. 48, No. 5, pp. 582-587.
Cascone, M. G.; Lazzeri, L.; Sparvoli, E.; Scatena, M.; Serino, L. P. and Danti, S. (2004) “Morphological evaluation of bioartificial hydrogels as potential tissue engineering scaffolds”. Journal of Materials Science: Materials in Medicine, vol. 15, No 12 (December), pp. 1309-1313.
dc.rights.spa.fl_str_mv Derechos Reservados - Universidad EIA, 2020
dc.rights.uri.spa.fl_str_mv https://creativecommons.org/licenses/by-nc/4.0/
dc.rights.accessrights.spa.fl_str_mv info:eu-repo/semantics/openAccess
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dc.format.extent.spa.fl_str_mv 10 p.
dc.publisher.editor.spa.fl_str_mv Fondo Editorial EIA
institution Universidad EIA .
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spelling Londoño, M. E. (Martha Elena)2d8b64cae5ab7a72799586e1fd1dc0fe-1Jaramillo, Juan Manuelee84986e7c518a51a5633e19736cfac9-1Sabater I Serra, Roser158d1039b36161fb8e2f26330395bcc9-1Vélez, Juan Manuelaaee4252320c079ac2d4390193d5e6e4-1pfmalon@eia.edu.cojjaram44@eafit.edu.corsabater@die.upv.esjmvelez@unal.edu.co2013-11-06T20:59:15Z2013-11-06T20:59:15Z2012-122013-11-062012-09-122012-08-20ISSN 17941237https://repository.eia.edu.co/handle/11190/116Londoño, M. E., Jaramillo, J. M., Sabater, R., and Vélez, J. M. (2012). Dielectric properties of poly(vinyl alcohol) hydrogels prepared by freezing/thawing technique, Revista EIA, 9 (18). doi: http://hdl.handle.net/11190/116The dielectric behavior of poly(vinyl alcohol) –PVA– crosslinked hydrogels obtained by the repeated freezing/ thawing (F/T) technique have been investigated by dielectric relaxation spectroscopy (DRS) and differential scanning calorimetry (DSC). The crosslinked polymer is produced by the clustering of chains caused by the association of a polar group of the dissolved polymer followed by polymer crystallization. The dielectric spectra obtained from -50 °C to -10 °C show a broad secondary relaxation process associated to local mobility, ß relaxation, which is related to the terminal polar groups (OH). This process is strongly affected by the freezing/thawing cycles applied. The values of tan d are below 1 indicating the dielectric phenomenon is predominant in all samples. The effect of crosslinking PVA on the dynamics of the secondary relaxation process was further analyzed.Por medio de espectroscopia dieléctrica (DRS) y calorimetría diferencial de barrido (DSC) se investigaron las propiedades dieléctricas de los hidrogeles de alcohol polivinílico –PVA– entrecruzados por ciclos repetidos de la técnica congelamiento/descongelamiento. La asociación de los grupos polares del polímero disuelto seguida de su cristalización produce la reticulación del polímero. La espectroscopia dieléctrica obtenida entre -50 °C y -10 °C demostró la existencia de un proceso de relajación secundario asociado con la movilidad de grupos laterales polares OH de la cadena principal, la relajación b. Los ciclos de congelamiento/descongelamiento afectan fuertemente este proceso. El fenómeno dieléctrico predomina en todas las muestras como lo evidencia el valor menor de 1 de tan d. Además, se analizó el efecto del entrecruzamiento en la dinámica de la relajación secundaria.10 p.engRevista EIAAbd El-kader, F. H.; Osman, W. H; Mahmoud, K. H. and Basha, M. A. F. (2008). “Dielectric investigations and ac conductivity of polyvinyl alcohol films doped with europium and terbium chloride”. Physica B: Condensed Matter, vol. 403, No. 19-20 (October), pp. 3473-3484.Awadhia, A.; Patel, S. K. and Agrawal, S. L. (2006). “Dielectric investigations in PVA based gel electrolytes”. Progress in Crystal Growth and Characterization of Materials, vol. 52, No. 1-2 (March- June), pp. 61-68.Blyte, T. and Bloor, D. Electrical properties of polymers. Cambridge, UK: Cambridge University Press, 2005. 480 p.Casalini, R. and Roland, C. M. (2010). “Effect of crosslinking on the secondary relaxation in polyvinylethylene”. Journal of Polymer Science. Part B: Polymer Physics, vol. 48, No. 5, pp. 582-587.Cascone, M. G.; Lazzeri, L.; Sparvoli, E.; Scatena, M.; Serino, L. P. and Danti, S. (2004) “Morphological evaluation of bioartificial hydrogels as potential tissue engineering scaffolds”. Journal of Materials Science: Materials in Medicine, vol. 15, No 12 (December), pp. 1309-1313.Derechos Reservados - Universidad EIA, 2020https://creativecommons.org/licenses/by-nc/4.0/El autor de la obra, actuando en nombre propio, hace entrega del ejemplar respectivo y de sus anexos en formato digital o electrónico y autoriza a la ESCUELA DE INGENIERIA DE ANTIOQUIA, para que en los términos establecidos en la Ley 23 de 1982, Ley 44 de 1993, Decisión andina 351 de 1993, Decreto 460 de 1995, y demás normas generales sobre la materia, utilice y use por cualquier medio conocido o por conocer, los derechos patrimoniales de reproducción, comunicación pública, transformación y distribución de la obra objeto del presente documento. PARÁGRAFO: La presente autorización se hace extensiva no sólo a las dependencias y derechos de uso sobre la obra en formato o soporte material, sino también para formato virtual, electrónico, digital, y en red, internet, extranet, intranet, etc., y en general en cualquier formato conocido o por conocer. EL AUTOR, manifiesta que la obra objeto de la presente autorización es original y la realiza sin violar o usurpar derechos de autor de terceros, por lo tanto la obra es de exclusiva autoría y tiene la titularidad sobre la misma. PARÁGRAFO: En caso de presentarse cualquier reclamación o acción por parte de un tercero en cuanto a los derechos de autor sobre la obra en cuestión, EL AUTOR, asumirá toda la responsabilidad, y saldrá en defensa de los derechos aquí autorizados; para todos los efectos la ESCUELA DE INGENIERÍA DE ANTIOQUIA actúa como un tercero de buena fe.info:eu-repo/semantics/openAccessAtribución-NoComercialhttp://purl.org/coar/access_right/c_abf2REI00195TECNOLOGÍAS PARA LA SALUDTECHNOLOGY IN HEALTHPOLYVINYL ALCOHOLPHARMACEUTICAL SOLUTIONSSOLUCIONES FARMACÉUTICASALCOHOL POLIVINÍLICODIELECTRIC PROPERTIESHYDROGELSFREEZING / THAWINGDIELECTRIC SPECTROSCOPYPROPIEDADES DIELÉCTRICASHIDROGELESCONGELAMIENTO / DESCONGELAMIENTOESPECTROSCOPIADIELÉCTRICADielectric properties of poly(vinyl alcohol) hydrogels prepared by freezing/thawing techniquePropriedades dieléctricas de hidrogeis de álcool polivinílico obtidos pela técnica de congelamento/ descongelamentoPropiedades dieléctricas de hidrogeles de alcohol polivinílico obtenidos por la técnica de congelamiento/ descongelamientoArtículo de revistahttp://purl.org/coar/resource_type/c_6501http://purl.org/coar/resource_type/c_2df8fbb1info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionTexthttps://purl.org/redcol/resource_type/ARThttp://purl.org/coar/version/c_970fb48d4fbd8a85Fondo Editorial EIAPublicationTHUMBNAILREI00195.pdf.jpgREI00195.pdf.jpgGenerated Thumbnailimage/jpeg11340https://repository.eia.edu.co/bitstreams/766a63ea-8ca0-45f2-ab38-06a3bb536a5e/download53853c7b06df03c1db9459ca0efd0096MD54ORIGINALREI00195.pdfREI00195.pdfapplication/pdf500131https://repository.eia.edu.co/bitstreams/7175d739-39c0-4882-96f6-2285085e3f1f/download745df2d2dd9c5d2ff4fca5a622c17a16MD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81494https://repository.eia.edu.co/bitstreams/d7b35514-68a7-4eb2-9b5d-6158c26426cc/download66874b0b9366b748c60895d2fb6339f8MD52TEXTREI00195.pdf.txtREI00195.pdf.txtExtracted texttext/plain29502https://repository.eia.edu.co/bitstreams/0c482a0d-c2fc-45c1-bcc8-b69ce5d343f4/downloadbff0eb1731a1a8ad988ce583d176916bMD5311190/116oai:repository.eia.edu.co:11190/1162023-07-25 17:18:11.41https://creativecommons.org/licenses/by-nc/4.0/Derechos Reservados - Universidad EIA, 2020open.accesshttps://repository.eia.edu.coRepositorio Institucional Universidad EIAbdigital@metabiblioteca.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