Molecular mechanisms of interphase evolution in the liquid polystyrene-glassy poly(phenylene oxide) system
- Autores
- Tomba, Juan Pablo; Carella, Jose Maria; Pastor, José M.
- Año de publicación
- 2009
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- We report a diffusion study on a series of interphases formed between a polystyrene-rich (PS) liquid layer and a poly(phenylene oxide) (PPO) glassy matrix. Diffusion was promoted by annealing the polymer pair at several temperatures below the glass transition temperature of the PPO matrix, in experiments where the liquid component was supplied from an unlimited source. Depth PS concentration profiles were obtained via optical sectioning through the glassy layer with confocal Raman microspectroscopy. The PS profiles measured in all the samples had sharp diffusion fronts followed by a region with relatively uniform PS concentration. From the time evolution of the PS front advance, we directly obtained the time-scaling laws for interphase kinetics which are interpreted in the context of the Fickean and case II diffusion theories. Despite some recent studies reporting the occurrence of case II in this particular system, our results and analysis show conclusively that interphase kinetics are, on the contrary, markedly Fickean. Results previously published by other authors on this polymer pair are also analyzed with the aim of offering a unified view about the mechanism that controls interphase evolution at the molecular level. © 2009 American Chemical Society.
Fil: Tomba, Juan Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
Fil: Carella, Jose Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
Fil: Pastor, José M.. Universidad de Valladolid; España - Materia
-
Interphase Diffusion Mechanism
Liquid-Glassy
Fichean Diffusion
Unlimited Liquid Supply - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/66782
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Molecular mechanisms of interphase evolution in the liquid polystyrene-glassy poly(phenylene oxide) systemTomba, Juan PabloCarella, Jose MariaPastor, José M.Interphase Diffusion MechanismLiquid-GlassyFichean DiffusionUnlimited Liquid Supplyhttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2We report a diffusion study on a series of interphases formed between a polystyrene-rich (PS) liquid layer and a poly(phenylene oxide) (PPO) glassy matrix. Diffusion was promoted by annealing the polymer pair at several temperatures below the glass transition temperature of the PPO matrix, in experiments where the liquid component was supplied from an unlimited source. Depth PS concentration profiles were obtained via optical sectioning through the glassy layer with confocal Raman microspectroscopy. The PS profiles measured in all the samples had sharp diffusion fronts followed by a region with relatively uniform PS concentration. From the time evolution of the PS front advance, we directly obtained the time-scaling laws for interphase kinetics which are interpreted in the context of the Fickean and case II diffusion theories. Despite some recent studies reporting the occurrence of case II in this particular system, our results and analysis show conclusively that interphase kinetics are, on the contrary, markedly Fickean. Results previously published by other authors on this polymer pair are also analyzed with the aim of offering a unified view about the mechanism that controls interphase evolution at the molecular level. © 2009 American Chemical Society.Fil: Tomba, Juan Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; ArgentinaFil: Carella, Jose Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; ArgentinaFil: Pastor, José M.. Universidad de Valladolid; EspañaAmerican Chemical Society2009-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/66782Tomba, Juan Pablo; Carella, Jose Maria; Pastor, José M.; Molecular mechanisms of interphase evolution in the liquid polystyrene-glassy poly(phenylene oxide) system; American Chemical Society; Macromolecules; 42; 10; 5-2009; 3565-35720024-9297CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1021/ma802884jinfo:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/abs/10.1021/ma802884jinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:45:17Zoai:ri.conicet.gov.ar:11336/66782instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:45:17.334CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Molecular mechanisms of interphase evolution in the liquid polystyrene-glassy poly(phenylene oxide) system |
title |
Molecular mechanisms of interphase evolution in the liquid polystyrene-glassy poly(phenylene oxide) system |
spellingShingle |
Molecular mechanisms of interphase evolution in the liquid polystyrene-glassy poly(phenylene oxide) system Tomba, Juan Pablo Interphase Diffusion Mechanism Liquid-Glassy Fichean Diffusion Unlimited Liquid Supply |
title_short |
Molecular mechanisms of interphase evolution in the liquid polystyrene-glassy poly(phenylene oxide) system |
title_full |
Molecular mechanisms of interphase evolution in the liquid polystyrene-glassy poly(phenylene oxide) system |
title_fullStr |
Molecular mechanisms of interphase evolution in the liquid polystyrene-glassy poly(phenylene oxide) system |
title_full_unstemmed |
Molecular mechanisms of interphase evolution in the liquid polystyrene-glassy poly(phenylene oxide) system |
title_sort |
Molecular mechanisms of interphase evolution in the liquid polystyrene-glassy poly(phenylene oxide) system |
dc.creator.none.fl_str_mv |
Tomba, Juan Pablo Carella, Jose Maria Pastor, José M. |
author |
Tomba, Juan Pablo |
author_facet |
Tomba, Juan Pablo Carella, Jose Maria Pastor, José M. |
author_role |
author |
author2 |
Carella, Jose Maria Pastor, José M. |
author2_role |
author author |
dc.subject.none.fl_str_mv |
Interphase Diffusion Mechanism Liquid-Glassy Fichean Diffusion Unlimited Liquid Supply |
topic |
Interphase Diffusion Mechanism Liquid-Glassy Fichean Diffusion Unlimited Liquid Supply |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/2.4 https://purl.org/becyt/ford/2 |
dc.description.none.fl_txt_mv |
We report a diffusion study on a series of interphases formed between a polystyrene-rich (PS) liquid layer and a poly(phenylene oxide) (PPO) glassy matrix. Diffusion was promoted by annealing the polymer pair at several temperatures below the glass transition temperature of the PPO matrix, in experiments where the liquid component was supplied from an unlimited source. Depth PS concentration profiles were obtained via optical sectioning through the glassy layer with confocal Raman microspectroscopy. The PS profiles measured in all the samples had sharp diffusion fronts followed by a region with relatively uniform PS concentration. From the time evolution of the PS front advance, we directly obtained the time-scaling laws for interphase kinetics which are interpreted in the context of the Fickean and case II diffusion theories. Despite some recent studies reporting the occurrence of case II in this particular system, our results and analysis show conclusively that interphase kinetics are, on the contrary, markedly Fickean. Results previously published by other authors on this polymer pair are also analyzed with the aim of offering a unified view about the mechanism that controls interphase evolution at the molecular level. © 2009 American Chemical Society. Fil: Tomba, Juan Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina Fil: Carella, Jose Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina Fil: Pastor, José M.. Universidad de Valladolid; España |
description |
We report a diffusion study on a series of interphases formed between a polystyrene-rich (PS) liquid layer and a poly(phenylene oxide) (PPO) glassy matrix. Diffusion was promoted by annealing the polymer pair at several temperatures below the glass transition temperature of the PPO matrix, in experiments where the liquid component was supplied from an unlimited source. Depth PS concentration profiles were obtained via optical sectioning through the glassy layer with confocal Raman microspectroscopy. The PS profiles measured in all the samples had sharp diffusion fronts followed by a region with relatively uniform PS concentration. From the time evolution of the PS front advance, we directly obtained the time-scaling laws for interphase kinetics which are interpreted in the context of the Fickean and case II diffusion theories. Despite some recent studies reporting the occurrence of case II in this particular system, our results and analysis show conclusively that interphase kinetics are, on the contrary, markedly Fickean. Results previously published by other authors on this polymer pair are also analyzed with the aim of offering a unified view about the mechanism that controls interphase evolution at the molecular level. © 2009 American Chemical Society. |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009-05 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/66782 Tomba, Juan Pablo; Carella, Jose Maria; Pastor, José M.; Molecular mechanisms of interphase evolution in the liquid polystyrene-glassy poly(phenylene oxide) system; American Chemical Society; Macromolecules; 42; 10; 5-2009; 3565-3572 0024-9297 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/66782 |
identifier_str_mv |
Tomba, Juan Pablo; Carella, Jose Maria; Pastor, José M.; Molecular mechanisms of interphase evolution in the liquid polystyrene-glassy poly(phenylene oxide) system; American Chemical Society; Macromolecules; 42; 10; 5-2009; 3565-3572 0024-9297 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1021/ma802884j info:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/abs/10.1021/ma802884j |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
American Chemical Society |
publisher.none.fl_str_mv |
American Chemical Society |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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13.070432 |