Molecular dynamics of carrageenan composites reinforced with Cloisite Na+ montmorillonite nanoclay
Descripción del Articulo
This work was supported by the Dirección General de Ciencia y Tecnología (DGCYT) [MAT2015-63955-R]; the Vice-Rectorate for Research of the Pontificia Universidad Católica del Perú and the National Council of Science, Technology and Technological Innovation of Peru (CONCYTEC/FONDECYT).
| Autores: | , , , , , |
|---|---|
| Formato: | artículo |
| Fecha de Publicación: | 2017 |
| Institución: | Consejo Nacional de Ciencia Tecnología e Innovación |
| Repositorio: | CONCYTEC-Institucional |
| Lenguaje: | inglés |
| OAI Identifier: | oai:repositorio.concytec.gob.pe:20.500.12390/623 |
| Enlace del recurso: | https://hdl.handle.net/20.500.12390/623 https://doi.org/10.1016/j.carbpol.2017.08.012 |
| Nivel de acceso: | acceso abierto |
| Materia: | Molecular dynamics Activation energy Biodegradable polymers Chains Clay minerals Dielectric relaxation Filled polymers Glass transition High resolution transmission electron microscopy Medical applications https://purl.org/pe-repo/ocde/ford#1.06.03 |
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CONC_0e4e5719b6c04182b703d8ecbb772abb |
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oai:repositorio.concytec.gob.pe:20.500.12390/623 |
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CONC |
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CONCYTEC-Institucional |
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4689 |
| dc.title.none.fl_str_mv |
Molecular dynamics of carrageenan composites reinforced with Cloisite Na+ montmorillonite nanoclay |
| title |
Molecular dynamics of carrageenan composites reinforced with Cloisite Na+ montmorillonite nanoclay |
| spellingShingle |
Molecular dynamics of carrageenan composites reinforced with Cloisite Na+ montmorillonite nanoclay Sanchis M.J. Molecular dynamics Activation energy Biodegradable polymers Chains Clay minerals Dielectric relaxation Filled polymers Glass transition High resolution transmission electron microscopy Medical applications https://purl.org/pe-repo/ocde/ford#1.06.03 |
| title_short |
Molecular dynamics of carrageenan composites reinforced with Cloisite Na+ montmorillonite nanoclay |
| title_full |
Molecular dynamics of carrageenan composites reinforced with Cloisite Na+ montmorillonite nanoclay |
| title_fullStr |
Molecular dynamics of carrageenan composites reinforced with Cloisite Na+ montmorillonite nanoclay |
| title_full_unstemmed |
Molecular dynamics of carrageenan composites reinforced with Cloisite Na+ montmorillonite nanoclay |
| title_sort |
Molecular dynamics of carrageenan composites reinforced with Cloisite Na+ montmorillonite nanoclay |
| author |
Sanchis M.J. |
| author_facet |
Sanchis M.J. Carsí M. Culebras M. Gómez C.M. Rodriguez S. Torres F.G. |
| author_role |
author |
| author2 |
Carsí M. Culebras M. Gómez C.M. Rodriguez S. Torres F.G. |
| author2_role |
author author author author author |
| dc.contributor.author.fl_str_mv |
Sanchis M.J. Carsí M. Culebras M. Gómez C.M. Rodriguez S. Torres F.G. |
| dc.subject.none.fl_str_mv |
Molecular dynamics |
| topic |
Molecular dynamics Activation energy Biodegradable polymers Chains Clay minerals Dielectric relaxation Filled polymers Glass transition High resolution transmission electron microscopy Medical applications https://purl.org/pe-repo/ocde/ford#1.06.03 |
| dc.subject.es_PE.fl_str_mv |
Activation energy Biodegradable polymers Chains Clay minerals Dielectric relaxation Filled polymers Glass transition High resolution transmission electron microscopy Medical applications |
| dc.subject.ocde.none.fl_str_mv |
https://purl.org/pe-repo/ocde/ford#1.06.03 |
| description |
This work was supported by the Dirección General de Ciencia y Tecnología (DGCYT) [MAT2015-63955-R]; the Vice-Rectorate for Research of the Pontificia Universidad Católica del Perú and the National Council of Science, Technology and Technological Innovation of Peru (CONCYTEC/FONDECYT). |
| publishDate |
2017 |
| dc.date.accessioned.none.fl_str_mv |
2024-05-30T23:13:38Z |
| dc.date.available.none.fl_str_mv |
2024-05-30T23:13:38Z |
| dc.date.issued.fl_str_mv |
2017 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article |
| format |
article |
| dc.identifier.uri.none.fl_str_mv |
https://hdl.handle.net/20.500.12390/623 |
| dc.identifier.doi.none.fl_str_mv |
https://doi.org/10.1016/j.carbpol.2017.08.012 |
| dc.identifier.scopus.none.fl_str_mv |
2-s2.0-85028348005 |
| url |
https://hdl.handle.net/20.500.12390/623 https://doi.org/10.1016/j.carbpol.2017.08.012 |
| identifier_str_mv |
2-s2.0-85028348005 |
| dc.language.iso.none.fl_str_mv |
eng |
| language |
eng |
| dc.relation.ispartof.none.fl_str_mv |
Carbohydrate Polymers |
| dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess |
| eu_rights_str_mv |
openAccess |
| dc.publisher.none.fl_str_mv |
Elsevier |
| publisher.none.fl_str_mv |
Elsevier |
| dc.source.none.fl_str_mv |
reponame:CONCYTEC-Institucional instname:Consejo Nacional de Ciencia Tecnología e Innovación instacron:CONCYTEC |
| instname_str |
Consejo Nacional de Ciencia Tecnología e Innovación |
| instacron_str |
CONCYTEC |
| institution |
CONCYTEC |
| reponame_str |
CONCYTEC-Institucional |
| collection |
CONCYTEC-Institucional |
| repository.name.fl_str_mv |
Repositorio Institucional CONCYTEC |
| repository.mail.fl_str_mv |
repositorio@concytec.gob.pe |
| _version_ |
1844882994883461120 |
| spelling |
Publicationrp01254600rp01256600rp01253600rp01255600rp00879400rp00532500Sanchis M.J.Carsí M.Culebras M.Gómez C.M.Rodriguez S.Torres F.G.2024-05-30T23:13:38Z2024-05-30T23:13:38Z2017https://hdl.handle.net/20.500.12390/623https://doi.org/10.1016/j.carbpol.2017.08.0122-s2.0-85028348005This work was supported by the Dirección General de Ciencia y Tecnología (DGCYT) [MAT2015-63955-R]; the Vice-Rectorate for Research of the Pontificia Universidad Católica del Perú and the National Council of Science, Technology and Technological Innovation of Peru (CONCYTEC/FONDECYT).Nanocomposites comprising biodegradable carrageenan and glycerol (KCg) as the host polymer, with different contents of natural montmorillonite (MMT) as filler, were prepared by a solution casting process. Different techniques have been used to determine the interaction/behavior among the different components of the samples such as Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), Transmission electron microscope (TEM) and, mainly, Dielectric relaxation spectroscopy (DRS). FTIR indicates hydrogen interaction between carrageenan matrix and silicate that is confirmed by the XRD data indicating some kind of carrageenan intercalation between the MMT layers. A rather homogenous distribution of MMT into KCg matrix were observed using transmission electron microscopy. The MMT effect on the molecular mobility at the glass transition was studied by dielectric relaxation spectroscopy. The MMT addition resulted in a slower relaxation and a wider distribution of the relaxation times. The fragility index, m, increased upon MMT incorporation, which may be attributed to a reduction in mobility chains, due to the MMT confinement of the KCg network. In addition, the apparent activation energy associated with the relaxation dynamics of the chains at Tg increased with the MMT content. The modified films developed in this paper could be used to prepare biodegradable and edible packaging films and films for biomedical applications with improved mechanical and good dielectric response.Fondo Nacional de Desarrollo Científico y Tecnológico - FondecytengElsevierCarbohydrate Polymersinfo:eu-repo/semantics/openAccessMolecular dynamicsActivation energy-1Biodegradable polymers-1Chains-1Clay minerals-1Dielectric relaxation-1Filled polymers-1Glass transition-1High resolution transmission electron microscopy-1Medical applications-1https://purl.org/pe-repo/ocde/ford#1.06.03-1Molecular dynamics of carrageenan composites reinforced with Cloisite Na+ montmorillonite nanoclayinfo:eu-repo/semantics/articlereponame:CONCYTEC-Institucionalinstname:Consejo Nacional de Ciencia Tecnología e Innovacióninstacron:CONCYTEC20.500.12390/623oai:repositorio.concytec.gob.pe:20.500.12390/6232024-05-30 15:58:18.778http://purl.org/coar/access_right/c_14cbinfo:eu-repo/semantics/closedAccessmetadata only accesshttps://repositorio.concytec.gob.peRepositorio Institucional CONCYTECrepositorio@concytec.gob.pe#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#<Publication xmlns="https://www.openaire.eu/cerif-profile/1.1/" id="897b2370-d2b2-4784-9f20-230b13f651ff"> <Type xmlns="https://www.openaire.eu/cerif-profile/vocab/COAR_Publication_Types">http://purl.org/coar/resource_type/c_1843</Type> <Language>eng</Language> <Title>Molecular dynamics of carrageenan composites reinforced with Cloisite Na+ montmorillonite nanoclay</Title> <PublishedIn> <Publication> <Title>Carbohydrate Polymers</Title> </Publication> </PublishedIn> <PublicationDate>2017</PublicationDate> <DOI>https://doi.org/10.1016/j.carbpol.2017.08.012</DOI> <SCP-Number>2-s2.0-85028348005</SCP-Number> <Authors> <Author> <DisplayName>Sanchis M.J.</DisplayName> <Person id="rp01254" /> <Affiliation> <OrgUnit> </OrgUnit> </Affiliation> </Author> <Author> <DisplayName>Carsí M.</DisplayName> <Person id="rp01256" /> <Affiliation> <OrgUnit> </OrgUnit> </Affiliation> </Author> <Author> <DisplayName>Culebras M.</DisplayName> <Person id="rp01253" /> <Affiliation> <OrgUnit> </OrgUnit> </Affiliation> </Author> <Author> <DisplayName>Gómez C.M.</DisplayName> <Person id="rp01255" /> <Affiliation> <OrgUnit> </OrgUnit> </Affiliation> </Author> <Author> <DisplayName>Rodriguez S.</DisplayName> <Person id="rp00879" /> <Affiliation> <OrgUnit> </OrgUnit> </Affiliation> </Author> <Author> <DisplayName>Torres F.G.</DisplayName> <Person id="rp00532" /> <Affiliation> <OrgUnit> </OrgUnit> </Affiliation> </Author> </Authors> <Editors> </Editors> <Publishers> <Publisher> <DisplayName>Elsevier</DisplayName> <OrgUnit /> </Publisher> </Publishers> <Keyword>Molecular dynamics</Keyword> <Keyword>Activation energy</Keyword> <Keyword>Biodegradable polymers</Keyword> <Keyword>Chains</Keyword> <Keyword>Clay minerals</Keyword> <Keyword>Dielectric relaxation</Keyword> <Keyword>Filled polymers</Keyword> <Keyword>Glass transition</Keyword> <Keyword>High resolution transmission electron microscopy</Keyword> <Keyword>Medical applications</Keyword> <Abstract>Nanocomposites comprising biodegradable carrageenan and glycerol (KCg) as the host polymer, with different contents of natural montmorillonite (MMT) as filler, were prepared by a solution casting process. Different techniques have been used to determine the interaction/behavior among the different components of the samples such as Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), Transmission electron microscope (TEM) and, mainly, Dielectric relaxation spectroscopy (DRS). FTIR indicates hydrogen interaction between carrageenan matrix and silicate that is confirmed by the XRD data indicating some kind of carrageenan intercalation between the MMT layers. A rather homogenous distribution of MMT into KCg matrix were observed using transmission electron microscopy. The MMT effect on the molecular mobility at the glass transition was studied by dielectric relaxation spectroscopy. The MMT addition resulted in a slower relaxation and a wider distribution of the relaxation times. The fragility index, m, increased upon MMT incorporation, which may be attributed to a reduction in mobility chains, due to the MMT confinement of the KCg network. In addition, the apparent activation energy associated with the relaxation dynamics of the chains at Tg increased with the MMT content. The modified films developed in this paper could be used to prepare biodegradable and edible packaging films and films for biomedical applications with improved mechanical and good dielectric response.</Abstract> <Access xmlns="http://purl.org/coar/access_right" > </Access> </Publication> -1 |
| score |
13.422088 |
Nota importante:
La información contenida en este registro es de entera responsabilidad de la institución que gestiona el repositorio institucional donde esta contenido este documento o set de datos. El CONCYTEC no se hace responsable por los contenidos (publicaciones y/o datos) accesibles a través del Repositorio Nacional Digital de Ciencia, Tecnología e Innovación de Acceso Abierto (ALICIA).
La información contenida en este registro es de entera responsabilidad de la institución que gestiona el repositorio institucional donde esta contenido este documento o set de datos. El CONCYTEC no se hace responsable por los contenidos (publicaciones y/o datos) accesibles a través del Repositorio Nacional Digital de Ciencia, Tecnología e Innovación de Acceso Abierto (ALICIA).
