Evaluation of the polymer-solvent interaction parameter χ for the system cured styrene butadiene rubber and toluene

One of the most popular cured rubbers used in industrial applications is styrene butadiene rubber (SBR) and frequently its network structure is studied by means of swelling techniques in solvent. Normally, toluene is used as solvent in this test. In order to estimate the crosslink density from the e...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autor principal:	Marzocca, Angel José
Publicado:	2007
Materias:	Crosslinking Flory-Huggins interaction parameter Styrene butadine rubber Swelling Toluene Butadiene Solvents Styrene Volume fraction Vulcanization Crosslink density Flory-Huggins interaction parameters Styrene butadiene rubber Rubber
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00143057_v43_n6_p2682_Marzocca http://hdl.handle.net/20.500.12110/paper_00143057_v43_n6_p2682_Marzocca
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_00143057_v43_n6_p2682_Marzocca
record_format	dspace
spelling	paper:paper_00143057_v43_n6_p2682_Marzocca2023-06-08T14:36:57Z Evaluation of the polymer-solvent interaction parameter χ for the system cured styrene butadiene rubber and toluene Marzocca, Angel José Crosslinking Flory-Huggins interaction parameter Styrene butadine rubber Swelling Toluene Butadiene Crosslinking Solvents Styrene Swelling Toluene Volume fraction Vulcanization Crosslink density Flory-Huggins interaction parameters Styrene butadiene rubber Rubber One of the most popular cured rubbers used in industrial applications is styrene butadiene rubber (SBR) and frequently its network structure is studied by means of swelling techniques in solvent. Normally, toluene is used as solvent in this test. In order to estimate the crosslink density from the equilibrium volume fraction of rubber in the swollen state, the correct evaluation of the Flory-Huggins interaction parameter χ is necessary. This work covers the swelling behavior of cured SBR in toluene. The rubber was vulcanized with different amounts sulfur and accelerator at 433 K in order to obtain several network structures and crosslink densities. Network characterisations of the compounds were made by swelling measurements in the frame of the Flory-Rehner relationship using the molecular weight of the network chain between chemical crosslinks obtained previously by mechanical tests. A relationship between χ and vr, the polymer volume fraction at equilibrium (maximum) degree of swelling, was established for the cured SBR/toluene system. It was found that χ is not a constant but depends on the crosslink density in the sample. The types of crosslinks in these samples where estimated applying this function to the swelling behavior of the compounds previously treated with the thiol probe method. © 2007 Elsevier Ltd. All rights reserved. Fil:Marzocca, A.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2007 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00143057_v43_n6_p2682_Marzocca http://hdl.handle.net/20.500.12110/paper_00143057_v43_n6_p2682_Marzocca
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 Flory-Huggins interaction parameter Styrene butadine rubber Swelling Toluene Butadiene Crosslinking Solvents Styrene Swelling Toluene Volume fraction Vulcanization Crosslink density Flory-Huggins interaction parameters Styrene butadiene rubber Rubber
spellingShingle	Crosslinking Flory-Huggins interaction parameter Styrene butadine rubber Swelling Toluene Butadiene Crosslinking Solvents Styrene Swelling Toluene Volume fraction Vulcanization Crosslink density Flory-Huggins interaction parameters Styrene butadiene rubber Rubber Marzocca, Angel José Evaluation of the polymer-solvent interaction parameter χ for the system cured styrene butadiene rubber and toluene
topic_facet	Crosslinking Flory-Huggins interaction parameter Styrene butadine rubber Swelling Toluene Butadiene Crosslinking Solvents Styrene Swelling Toluene Volume fraction Vulcanization Crosslink density Flory-Huggins interaction parameters Styrene butadiene rubber Rubber
description	One of the most popular cured rubbers used in industrial applications is styrene butadiene rubber (SBR) and frequently its network structure is studied by means of swelling techniques in solvent. Normally, toluene is used as solvent in this test. In order to estimate the crosslink density from the equilibrium volume fraction of rubber in the swollen state, the correct evaluation of the Flory-Huggins interaction parameter χ is necessary. This work covers the swelling behavior of cured SBR in toluene. The rubber was vulcanized with different amounts sulfur and accelerator at 433 K in order to obtain several network structures and crosslink densities. Network characterisations of the compounds were made by swelling measurements in the frame of the Flory-Rehner relationship using the molecular weight of the network chain between chemical crosslinks obtained previously by mechanical tests. A relationship between χ and vr, the polymer volume fraction at equilibrium (maximum) degree of swelling, was established for the cured SBR/toluene system. It was found that χ is not a constant but depends on the crosslink density in the sample. The types of crosslinks in these samples where estimated applying this function to the swelling behavior of the compounds previously treated with the thiol probe method. © 2007 Elsevier Ltd. All rights reserved.
author	Marzocca, Angel José
author_facet	Marzocca, Angel José
author_sort	Marzocca, Angel José
title	Evaluation of the polymer-solvent interaction parameter χ for the system cured styrene butadiene rubber and toluene
title_short	Evaluation of the polymer-solvent interaction parameter χ for the system cured styrene butadiene rubber and toluene
title_full	Evaluation of the polymer-solvent interaction parameter χ for the system cured styrene butadiene rubber and toluene
title_fullStr	Evaluation of the polymer-solvent interaction parameter χ for the system cured styrene butadiene rubber and toluene
title_full_unstemmed	Evaluation of the polymer-solvent interaction parameter χ for the system cured styrene butadiene rubber and toluene
title_sort	evaluation of the polymer-solvent interaction parameter χ for the system cured styrene butadiene rubber and toluene
publishDate	2007
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00143057_v43_n6_p2682_Marzocca http://hdl.handle.net/20.500.12110/paper_00143057_v43_n6_p2682_Marzocca
work_keys_str_mv	AT marzoccaangeljose evaluationofthepolymersolventinteractionparameterchforthesystemcuredstyrenebutadienerubberandtoluene
_version_	1768545124847976448

Evaluation of the polymer-solvent interaction parameter χ for the system cured styrene butadiene rubber and toluene

Ejemplares similares