Crystallization behavior of random ethylene-butene copolymers modified with organic peroxide

Autores
Pérez, Claudio Javier; Alvarez, Vera Alejandra; Valles, Enrique Marcelo; Failla, Marcelo Daniel
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The effect of molecular cross-linking on the crystallization of random ethylene-1-butene copolymers obtained from hydrogenation of model polybutadiene was studied by means of differential scanning calorimetry. The copolymers were modified with different concentrations of organic peroxide in the molten state to generate different crosslink levels. Under isothermal conditions, the crystallization rate of the modified polymers decreased with the average molecular weight likewise to that observed in the unmodified copolymers. Original and modified polymers show similar isothermal crystallization rates when compared to equivalent weight average molecular weights. Under no isothermal crystallization conditions, the temperature and the enthalpy of crystallization of the modified polymer decreased almost linearly with the concentration of peroxide. The activation energy for crystallization increased with the concentration of peroxide indicating that the increment in molecular crosslinking restricts the crystallization process.
Fil: Pérez, Claudio Javier. 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: Alvarez, Vera Alejandra. 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: Valles, Enrique Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; Argentina
Fil: Failla, Marcelo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; Argentina
Materia
AVRAMI EQUATION
CROSSLINKING
CRYSTALLIZATION
ETHYLENE-BUTENE COPOLYMERS
ORGANIC PEROXIDE
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/7055
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/7055
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Crystallization behavior of random ethylene-butene copolymers modified with organic peroxidePérez, Claudio JavierAlvarez, Vera AlejandraValles, Enrique MarceloFailla, Marcelo DanielAVRAMI EQUATIONCROSSLINKINGCRYSTALLIZATIONETHYLENE-BUTENE COPOLYMERSORGANIC PEROXIDEhttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2https://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1The effect of molecular cross-linking on the crystallization of random ethylene-1-butene copolymers obtained from hydrogenation of model polybutadiene was studied by means of differential scanning calorimetry. The copolymers were modified with different concentrations of organic peroxide in the molten state to generate different crosslink levels. Under isothermal conditions, the crystallization rate of the modified polymers decreased with the average molecular weight likewise to that observed in the unmodified copolymers. Original and modified polymers show similar isothermal crystallization rates when compared to equivalent weight average molecular weights. Under no isothermal crystallization conditions, the temperature and the enthalpy of crystallization of the modified polymer decreased almost linearly with the concentration of peroxide. The activation energy for crystallization increased with the concentration of peroxide indicating that the increment in molecular crosslinking restricts the crystallization process.Fil: Pérez, Claudio Javier. 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: Alvarez, Vera Alejandra. 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: Valles, Enrique Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; ArgentinaFil: Failla, Marcelo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; ArgentinaElsevier Science2012-01-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/7055Pérez, Claudio Javier; Alvarez, Vera Alejandra; Valles, Enrique Marcelo; Failla, Marcelo Daniel; Crystallization behavior of random ethylene-butene copolymers modified with organic peroxide; Elsevier Science; Thermochimica Acta; 528; 2-1-2012; 15-220040-6031enginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0040603111005429info:eu-repo/semantics/altIdentifier/doi/10.1016/j.tca.2011.10.031info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:10:02Zoai:ri.conicet.gov.ar:11336/7055instacron: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:34982025-09-10 13:10:02.518CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Crystallization behavior of random ethylene-butene copolymers modified with organic peroxide
title Crystallization behavior of random ethylene-butene copolymers modified with organic peroxide
spellingShingle Crystallization behavior of random ethylene-butene copolymers modified with organic peroxide
Pérez, Claudio Javier
AVRAMI EQUATION
CROSSLINKING
CRYSTALLIZATION
ETHYLENE-BUTENE COPOLYMERS
ORGANIC PEROXIDE
title_short Crystallization behavior of random ethylene-butene copolymers modified with organic peroxide
title_full Crystallization behavior of random ethylene-butene copolymers modified with organic peroxide
title_fullStr Crystallization behavior of random ethylene-butene copolymers modified with organic peroxide
title_full_unstemmed Crystallization behavior of random ethylene-butene copolymers modified with organic peroxide
title_sort Crystallization behavior of random ethylene-butene copolymers modified with organic peroxide
dc.creator.none.fl_str_mv Pérez, Claudio Javier
Alvarez, Vera Alejandra
Valles, Enrique Marcelo
Failla, Marcelo Daniel
author Pérez, Claudio Javier
author_facet Pérez, Claudio Javier
Alvarez, Vera Alejandra
Valles, Enrique Marcelo
Failla, Marcelo Daniel
author_role author
author2 Alvarez, Vera Alejandra
Valles, Enrique Marcelo
Failla, Marcelo Daniel
author2_role author
author
author
dc.subject.none.fl_str_mv AVRAMI EQUATION
CROSSLINKING
CRYSTALLIZATION
ETHYLENE-BUTENE COPOLYMERS
ORGANIC PEROXIDE
topic AVRAMI EQUATION
CROSSLINKING
CRYSTALLIZATION
ETHYLENE-BUTENE COPOLYMERS
ORGANIC PEROXIDE
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The effect of molecular cross-linking on the crystallization of random ethylene-1-butene copolymers obtained from hydrogenation of model polybutadiene was studied by means of differential scanning calorimetry. The copolymers were modified with different concentrations of organic peroxide in the molten state to generate different crosslink levels. Under isothermal conditions, the crystallization rate of the modified polymers decreased with the average molecular weight likewise to that observed in the unmodified copolymers. Original and modified polymers show similar isothermal crystallization rates when compared to equivalent weight average molecular weights. Under no isothermal crystallization conditions, the temperature and the enthalpy of crystallization of the modified polymer decreased almost linearly with the concentration of peroxide. The activation energy for crystallization increased with the concentration of peroxide indicating that the increment in molecular crosslinking restricts the crystallization process.
Fil: Pérez, Claudio Javier. 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: Alvarez, Vera Alejandra. 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: Valles, Enrique Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; Argentina
Fil: Failla, Marcelo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; Argentina
description The effect of molecular cross-linking on the crystallization of random ethylene-1-butene copolymers obtained from hydrogenation of model polybutadiene was studied by means of differential scanning calorimetry. The copolymers were modified with different concentrations of organic peroxide in the molten state to generate different crosslink levels. Under isothermal conditions, the crystallization rate of the modified polymers decreased with the average molecular weight likewise to that observed in the unmodified copolymers. Original and modified polymers show similar isothermal crystallization rates when compared to equivalent weight average molecular weights. Under no isothermal crystallization conditions, the temperature and the enthalpy of crystallization of the modified polymer decreased almost linearly with the concentration of peroxide. The activation energy for crystallization increased with the concentration of peroxide indicating that the increment in molecular crosslinking restricts the crystallization process.
publishDate 2012
dc.date.none.fl_str_mv 2012-01-02
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/11336/7055
Pérez, Claudio Javier; Alvarez, Vera Alejandra; Valles, Enrique Marcelo; Failla, Marcelo Daniel; Crystallization behavior of random ethylene-butene copolymers modified with organic peroxide; Elsevier Science; Thermochimica Acta; 528; 2-1-2012; 15-22
0040-6031
url http://hdl.handle.net/11336/7055
identifier_str_mv Pérez, Claudio Javier; Alvarez, Vera Alejandra; Valles, Enrique Marcelo; Failla, Marcelo Daniel; Crystallization behavior of random ethylene-butene copolymers modified with organic peroxide; Elsevier Science; Thermochimica Acta; 528; 2-1-2012; 15-22
0040-6031
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0040603111005429
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.tca.2011.10.031
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str 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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score 12.993085

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