Solid state polymerization: its action on thermal and rheological properties of PET/PC reactive blends

Detalhes bibliográficos
Autor(a) principal: Mendes,Luis C.
Data de Publicação: 2013
Outros Autores: Pereira,Patrícia S.C.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Polímeros (São Carlos. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282013000300003
Resumo: The solid state polymerization (SSP) of PET/PC reactive extrusion blends - with and without cobalt catalyst - at different polymer ratios was studied. Thermal and rheological evaluations were performed. DSC results showed changes in the PET's Tg, Tch, Tm and Xc.. The melt flow rate (MFR) decreased for PET and the blends. The intrinsic viscosity increased. The variation in calorimetric and rheological properties might be attributed to the PET's chain extension reactions - esterification and transesterification. These reactions led to an increase in the PET's molar mass, consequently shifting the PET's Tg to lower temperature and PET's crystallization, besides reducing the blend miscibility and flowability.
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spelling Solid state polymerization: its action on thermal and rheological properties of PET/PC reactive blendsRheologyblendscatalystsPET/PCthermal propertiesThe solid state polymerization (SSP) of PET/PC reactive extrusion blends - with and without cobalt catalyst - at different polymer ratios was studied. Thermal and rheological evaluations were performed. DSC results showed changes in the PET's Tg, Tch, Tm and Xc.. The melt flow rate (MFR) decreased for PET and the blends. The intrinsic viscosity increased. The variation in calorimetric and rheological properties might be attributed to the PET's chain extension reactions - esterification and transesterification. These reactions led to an increase in the PET's molar mass, consequently shifting the PET's Tg to lower temperature and PET's crystallization, besides reducing the blend miscibility and flowability.Associação Brasileira de Polímeros2013-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282013000300003Polímeros v.23 n.3 2013reponame:Polímeros (São Carlos. Online)instname:Associação Brasileira de Polímeros (ABPol)instacron:ABPO10.4322/polimeros.2013.031info:eu-repo/semantics/openAccessMendes,Luis C.Pereira,Patrícia S.C.eng2015-07-21T00:00:00Zoai:scielo:S0104-14282013000300003Revistahttp://www.scielo.br/pohttps://old.scielo.br/oai/scielo-oai.php||revista@abpol.org.br1678-51690104-1428opendoar:2015-07-21T00:00Polímeros (São Carlos. Online) - Associação Brasileira de Polímeros (ABPol)false
dc.title.none.fl_str_mv Solid state polymerization: its action on thermal and rheological properties of PET/PC reactive blends
title Solid state polymerization: its action on thermal and rheological properties of PET/PC reactive blends
spellingShingle Solid state polymerization: its action on thermal and rheological properties of PET/PC reactive blends
Mendes,Luis C.
Rheology
blends
catalysts
PET/PC
thermal properties
title_short Solid state polymerization: its action on thermal and rheological properties of PET/PC reactive blends
title_full Solid state polymerization: its action on thermal and rheological properties of PET/PC reactive blends
title_fullStr Solid state polymerization: its action on thermal and rheological properties of PET/PC reactive blends
title_full_unstemmed Solid state polymerization: its action on thermal and rheological properties of PET/PC reactive blends
title_sort Solid state polymerization: its action on thermal and rheological properties of PET/PC reactive blends
author Mendes,Luis C.
author_facet Mendes,Luis C.
Pereira,Patrícia S.C.
author_role author
author2 Pereira,Patrícia S.C.
author2_role author
dc.contributor.author.fl_str_mv Mendes,Luis C.
Pereira,Patrícia S.C.
dc.subject.por.fl_str_mv Rheology
blends
catalysts
PET/PC
thermal properties
topic Rheology
blends
catalysts
PET/PC
thermal properties
description The solid state polymerization (SSP) of PET/PC reactive extrusion blends - with and without cobalt catalyst - at different polymer ratios was studied. Thermal and rheological evaluations were performed. DSC results showed changes in the PET's Tg, Tch, Tm and Xc.. The melt flow rate (MFR) decreased for PET and the blends. The intrinsic viscosity increased. The variation in calorimetric and rheological properties might be attributed to the PET's chain extension reactions - esterification and transesterification. These reactions led to an increase in the PET's molar mass, consequently shifting the PET's Tg to lower temperature and PET's crystallization, besides reducing the blend miscibility and flowability.
publishDate 2013
dc.date.none.fl_str_mv 2013-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282013000300003
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282013000300003
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.4322/polimeros.2013.031
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Associação Brasileira de Polímeros
publisher.none.fl_str_mv Associação Brasileira de Polímeros
dc.source.none.fl_str_mv Polímeros v.23 n.3 2013
reponame:Polímeros (São Carlos. Online)
instname:Associação Brasileira de Polímeros (ABPol)
instacron:ABPO
instname_str Associação Brasileira de Polímeros (ABPol)
instacron_str ABPO
institution ABPO
reponame_str Polímeros (São Carlos. Online)
collection Polímeros (São Carlos. Online)
repository.name.fl_str_mv Polímeros (São Carlos. Online) - Associação Brasileira de Polímeros (ABPol)
repository.mail.fl_str_mv ||revista@abpol.org.br
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