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

One of the most popular cured rubbers used in industrial applications is polybutadiene rubber (BR) and frequently its network structure, in the cured state, is studied by means of swelling in a solvent. Normally, toluene is used as solvent in this test. In order to estimate the crosslink density fro...

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Autor principal: Marzocca, Angel José
Otros Autores: Rodriguez Garraza, Ana Lucía, Mansilla, Marcela Angela
Formato: Capítulo de libro
Lenguaje:Inglés
Publicado: 2010
Acceso en línea:Registro en Scopus
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100 1 |a Marzocca, Angel José 
245 1 0 |a Evaluation of the polymer-solvent interaction parameter χ for the system cured polybutadiene rubber and toluene 
260 |c 2010 
270 1 0 |m Marzocca, A.J.; Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Física, LPMPyMC, Pabellón 1, Ciudad Universitaria Buenos Aires C1428EGA, Argentina; email: marzo@df.uba.ar 
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506 |2 openaire  |e Política editorial 
520 3 |a One of the most popular cured rubbers used in industrial applications is polybutadiene rubber (BR) and frequently its network structure, in the cured state, is studied by means of swelling in a 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 behaviour of two types of cured BR in toluene. The rubbers used have sulphur and accelerator in their composition and were vulcanized at 433 K at different times in order to obtain several network structures and crosslink densities. The crosslink densities were evaluated from uniaxial stress-strain data measured at room temperature and analysed in the frame of the conformational tube model. Using this information and the swelling measurements in the frame of the Flory-Rehner relationship, a relationship between χ and vr, the polymer volume fraction at equilibrium (maximum) degree of swelling was established for the cured BR/toluene system. It was found that χ is not a constant but depends on the crosslink density of the sample. © 2009 Elsevier Ltd. All rights reserved.  |l eng 
536 |a Detalles de la financiación: Agencia Nacional de Promoción Científica y Tecnológica, PICT 1650/06 
536 |a Detalles de la financiación: Universidad de Buenos Aires, X808 
536 |a Detalles de la financiación: This work was supported by the Universidad de Buenos Aires, Argentina (Research Project X808) and partially by the Agencia Nacional de Promoción Científica y Tecnológica (PICT 1650/06). The authors want to thank Lanxess S.A.(Argentina) for the polymers and Fate SAICI (Argentina) for the preparation of the samples. 
593 |a Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Física, LPMPyMC, Pabellón 1, Ciudad Universitaria Buenos Aires C1428EGA, Argentina 
690 1 0 |a CROSSLINKING 
690 1 0 |a FLORY-HUGGINS INTERACTION PARAMETER 
690 1 0 |a POLYBUTADIENE RUBBER 
690 1 0 |a SWELLING 
690 1 0 |a TOLUENE 
690 1 0 |a CROSS-LINK DENSITIES 
690 1 0 |a DEGREE OF SWELLING 
690 1 0 |a FLORY-HUGGINS INTERACTION PARAMETER 
690 1 0 |a NETWORK STRUCTURES 
690 1 0 |a POLYBUTADIENE RUBBER 
690 1 0 |a POLYBUTADIENE RUBBERS 
690 1 0 |a POLYMER VOLUME FRACTION 
690 1 0 |a POLYMER-SOLVENT INTERACTIONS 
690 1 0 |a ROOM TEMPERATURE 
690 1 0 |a SWELLING BEHAVIOUR 
690 1 0 |a SWELLING MEASUREMENTS 
690 1 0 |a TUBE MODEL 
690 1 0 |a UNIAXIAL STRESS 
690 1 0 |a CURING 
690 1 0 |a INDUSTRIAL APPLICATIONS 
690 1 0 |a POLYBUTADIENES 
690 1 0 |a RUBBER 
690 1 0 |a RUBBER APPLICATIONS 
690 1 0 |a SOLVENTS 
690 1 0 |a SULFUR 
690 1 0 |a SWELLING 
690 1 0 |a TITRATION 
690 1 0 |a TOLUENE 
690 1 0 |a ORGANIC SOLVENTS 
700 1 |a Rodriguez Garraza, Ana Lucía 
700 1 |a Mansilla, Marcela Angela 
773 0 |d 2010  |g v. 29  |h pp. 119-126  |k n. 1  |p Polym Test  |x 01429418  |w (AR-BaUEN)CENRE-6542  |t Polymer Testing 
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