Influence of the microstructure of vulcanized polybutadiene rubber on the dielectric properties
Dielectric relaxation spectra in the frequency range from 10 Hz to 1 GHz were obtained at room temperature to study the influence of the network structure formed during vulcanization on the dielectric properties of polybutadiene rubber (BR). Two polybutadiene rubbers with different cis, trans and vi...
Autores principales: | , , |
---|---|
Publicado: |
2011
|
Materias: | |
Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01429418_v30_n6_p657_RodriguezGarraza http://hdl.handle.net/20.500.12110/paper_01429418_v30_n6_p657_RodriguezGarraza |
Aporte de: |
id |
paper:paper_01429418_v30_n6_p657_RodriguezGarraza |
---|---|
record_format |
dspace |
institution |
Universidad de Buenos Aires |
institution_str |
I-28 |
repository_str |
R-134 |
collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
topic |
Crosslinking Dielectric properties Polybutadiene rubber Cross-link densities Cu-Re system Dielectric parameters Dielectric permittivities Dielectric relaxation spectra Frequency ranges Havriliak-Negami model Network structures Polybutadiene rubber Polybutadiene rubbers Room temperature Structural change Sulfenamides Dielectric relaxation Nuclear magnetic resonance spectroscopy Permittivity Rubber Sulfur Vulcanization Polybutadienes |
spellingShingle |
Crosslinking Dielectric properties Polybutadiene rubber Cross-link densities Cu-Re system Dielectric parameters Dielectric permittivities Dielectric relaxation spectra Frequency ranges Havriliak-Negami model Network structures Polybutadiene rubber Polybutadiene rubbers Room temperature Structural change Sulfenamides Dielectric relaxation Nuclear magnetic resonance spectroscopy Permittivity Rubber Sulfur Vulcanization Polybutadienes Sorichetti, Patricio Aníbal Marzocca, Angel José Matteó, Claudia Leda Influence of the microstructure of vulcanized polybutadiene rubber on the dielectric properties |
topic_facet |
Crosslinking Dielectric properties Polybutadiene rubber Cross-link densities Cu-Re system Dielectric parameters Dielectric permittivities Dielectric relaxation spectra Frequency ranges Havriliak-Negami model Network structures Polybutadiene rubber Polybutadiene rubbers Room temperature Structural change Sulfenamides Dielectric relaxation Nuclear magnetic resonance spectroscopy Permittivity Rubber Sulfur Vulcanization Polybutadienes |
description |
Dielectric relaxation spectra in the frequency range from 10 Hz to 1 GHz were obtained at room temperature to study the influence of the network structure formed during vulcanization on the dielectric properties of polybutadiene rubber (BR). Two polybutadiene rubbers with different cis, trans and vinyl content in their molecular structure were used to prepare compounds with a cure system based on sulphur and TBBS (N-t-butyl-2-benzothiazole sulfenamide). Samples of each compound were vulcanized at 433 K for several times in order to obtain different crosslink densities. Structural changes in both compounds during vulcanization were measured by means of solid-state C-13 NMR spectroscopy. Dielectric permittivity was measured as function of the frequency and analyzed using the Havriliak-Negami model. The results show a clear dependence of the dielectric parameters on the crosslink density and 1,4-cis content. © 2011 Elsevier Ltd. All rights reserved. |
author |
Sorichetti, Patricio Aníbal Marzocca, Angel José Matteó, Claudia Leda |
author_facet |
Sorichetti, Patricio Aníbal Marzocca, Angel José Matteó, Claudia Leda |
author_sort |
Sorichetti, Patricio Aníbal |
title |
Influence of the microstructure of vulcanized polybutadiene rubber on the dielectric properties |
title_short |
Influence of the microstructure of vulcanized polybutadiene rubber on the dielectric properties |
title_full |
Influence of the microstructure of vulcanized polybutadiene rubber on the dielectric properties |
title_fullStr |
Influence of the microstructure of vulcanized polybutadiene rubber on the dielectric properties |
title_full_unstemmed |
Influence of the microstructure of vulcanized polybutadiene rubber on the dielectric properties |
title_sort |
influence of the microstructure of vulcanized polybutadiene rubber on the dielectric properties |
publishDate |
2011 |
url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01429418_v30_n6_p657_RodriguezGarraza http://hdl.handle.net/20.500.12110/paper_01429418_v30_n6_p657_RodriguezGarraza |
work_keys_str_mv |
AT sorichettipatricioanibal influenceofthemicrostructureofvulcanizedpolybutadienerubberonthedielectricproperties AT marzoccaangeljose influenceofthemicrostructureofvulcanizedpolybutadienerubberonthedielectricproperties AT matteoclaudialeda influenceofthemicrostructureofvulcanizedpolybutadienerubberonthedielectricproperties |
bdutipo_str |
Repositorios |
_version_ |
1764820560795140097 |