Viscometric study of high-cis polybutadiene in toluene solution
Autor(a) principal: | |
---|---|
Data de Publicação: | 2006 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Journal of the Brazilian Chemical Society (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532006000100028 |
Resumo: | Viscometric measurements, in toluene solution at 30 ºC, were performed with high-cis polybutadiene synthesized by neodymium based catalyst. Six different equations were used to calculate intrinsic viscosities and viscosimetric constant values: Huggins, Kraemer, Martin and Schulz-Blaschke by graphic extrapolation, and Solomon-Ciuta, Deb-Chanterjee and again Schulz-Blaschke, through a single point determination. The molecular weight of the polymers was also determined applying Mark-Houwink-Sakurada equation using the values of intrinsic viscosity obtained by the six equations. The values of intrinsic viscosity and viscosity-average molecular weight obtained by the two methods were compared in order to verify the validity of the single point determination for high-cis polybutadiene. |
id |
SBQ-2_6f480b7460e65e925a907a36c059fe5d |
---|---|
oai_identifier_str |
oai:scielo:S0103-50532006000100028 |
network_acronym_str |
SBQ-2 |
network_name_str |
Journal of the Brazilian Chemical Society (Online) |
repository_id_str |
|
spelling |
Viscometric study of high-cis polybutadiene in toluene solutionpolybutadieneviscositymolecular weightsingle point determinationViscometric measurements, in toluene solution at 30 ºC, were performed with high-cis polybutadiene synthesized by neodymium based catalyst. Six different equations were used to calculate intrinsic viscosities and viscosimetric constant values: Huggins, Kraemer, Martin and Schulz-Blaschke by graphic extrapolation, and Solomon-Ciuta, Deb-Chanterjee and again Schulz-Blaschke, through a single point determination. The molecular weight of the polymers was also determined applying Mark-Houwink-Sakurada equation using the values of intrinsic viscosity obtained by the six equations. The values of intrinsic viscosity and viscosity-average molecular weight obtained by the two methods were compared in order to verify the validity of the single point determination for high-cis polybutadiene.Sociedade Brasileira de Química2006-02-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532006000100028Journal of the Brazilian Chemical Society v.17 n.1 2006reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0103-50532006000100028info:eu-repo/semantics/openAccessMello,Ivana L.Delpech,Marcia C.Coutinho,Fernanda M. B.Albino,Fernanda F. M.eng2006-03-14T00:00:00Zoai:scielo:S0103-50532006000100028Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2006-03-14T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false |
dc.title.none.fl_str_mv |
Viscometric study of high-cis polybutadiene in toluene solution |
title |
Viscometric study of high-cis polybutadiene in toluene solution |
spellingShingle |
Viscometric study of high-cis polybutadiene in toluene solution Mello,Ivana L. polybutadiene viscosity molecular weight single point determination |
title_short |
Viscometric study of high-cis polybutadiene in toluene solution |
title_full |
Viscometric study of high-cis polybutadiene in toluene solution |
title_fullStr |
Viscometric study of high-cis polybutadiene in toluene solution |
title_full_unstemmed |
Viscometric study of high-cis polybutadiene in toluene solution |
title_sort |
Viscometric study of high-cis polybutadiene in toluene solution |
author |
Mello,Ivana L. |
author_facet |
Mello,Ivana L. Delpech,Marcia C. Coutinho,Fernanda M. B. Albino,Fernanda F. M. |
author_role |
author |
author2 |
Delpech,Marcia C. Coutinho,Fernanda M. B. Albino,Fernanda F. M. |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Mello,Ivana L. Delpech,Marcia C. Coutinho,Fernanda M. B. Albino,Fernanda F. M. |
dc.subject.por.fl_str_mv |
polybutadiene viscosity molecular weight single point determination |
topic |
polybutadiene viscosity molecular weight single point determination |
description |
Viscometric measurements, in toluene solution at 30 ºC, were performed with high-cis polybutadiene synthesized by neodymium based catalyst. Six different equations were used to calculate intrinsic viscosities and viscosimetric constant values: Huggins, Kraemer, Martin and Schulz-Blaschke by graphic extrapolation, and Solomon-Ciuta, Deb-Chanterjee and again Schulz-Blaschke, through a single point determination. The molecular weight of the polymers was also determined applying Mark-Houwink-Sakurada equation using the values of intrinsic viscosity obtained by the six equations. The values of intrinsic viscosity and viscosity-average molecular weight obtained by the two methods were compared in order to verify the validity of the single point determination for high-cis polybutadiene. |
publishDate |
2006 |
dc.date.none.fl_str_mv |
2006-02-01 |
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=S0103-50532006000100028 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532006000100028 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0103-50532006000100028 |
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 |
Sociedade Brasileira de Química |
publisher.none.fl_str_mv |
Sociedade Brasileira de Química |
dc.source.none.fl_str_mv |
Journal of the Brazilian Chemical Society v.17 n.1 2006 reponame:Journal of the Brazilian Chemical Society (Online) instname:Sociedade Brasileira de Química (SBQ) instacron:SBQ |
instname_str |
Sociedade Brasileira de Química (SBQ) |
instacron_str |
SBQ |
institution |
SBQ |
reponame_str |
Journal of the Brazilian Chemical Society (Online) |
collection |
Journal of the Brazilian Chemical Society (Online) |
repository.name.fl_str_mv |
Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ) |
repository.mail.fl_str_mv |
||office@jbcs.sbq.org.br |
_version_ |
1750318166957883392 |