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...

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Autores principales: Sorichetti, Patricio Aníbal, Marzocca, Angel José, Matteó, Claudia Leda
Publicado: 2011
Materias:
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 rubbers
Room temperature
Structural change
Sulfenamides
Dielectric relaxation
Nuclear magnetic resonance spectroscopy
Permittivity
Rubber
Sulfur
Vulcanization
Polybutadienes
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:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_01429418_v30_n6_p657_RodriguezGarraza
record_format dspace
spelling paper:paper_01429418_v30_n6_p657_RodriguezGarraza2023-06-08T15:11:40Z Influence of the microstructure of vulcanized polybutadiene rubber on the dielectric properties Sorichetti, Patricio Aníbal Marzocca, Angel José Matteó, Claudia Leda 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 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. Fil:Sorichetti, P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Marzocca, A.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Matteo, C.L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2011 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
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
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