Polymer-solvent interaction parameters of SBS rubbers by inverse gas chromatography measurements

Díaz Moreno, Francisco Ismael and Ovejero, G. and Romero, M.D. and Diaz, I. (2011). Polymer-solvent interaction parameters of SBS rubbers by inverse gas chromatography measurements. "Fluid Phase Equilibria", v. 308 (n. 1-2); pp. 107-113. ISSN 0378-3812. https://doi.org/10.1016/j.fluid.2011.06.018.

Description

Title: Polymer-solvent interaction parameters of SBS rubbers by inverse gas chromatography measurements
Author/s:
  • Díaz Moreno, Francisco Ismael
  • Ovejero, G.
  • Romero, M.D.
  • Diaz, I.
Item Type: Article
Título de Revista/Publicación: Fluid Phase Equilibria
Date: September 2011
ISSN: 0378-3812
Volume: 308
Subjects:
Faculty: E.T.S.I. Industriales (UPM)
Department: Ingeniería Química Industrial y del Medio Ambiente
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The solubility parameters of two SBS commercial rubbers with different structures (lineal and radial), and with slightly different styrene content have been determined by inverse gas chromatography technique. The Flory–Huggins interaction parameters of several polymer–solvent mixtures have also been calculated. The influence of the polymer composition, the solvent molecular weight and the temperature over these parameters have been discussed; besides, these parameters have been compared with previous ones, obtained by intrinsic viscosity measurements. From the Flory–Huggins interaction parameters, the infinite dilution activity coefficients of the solvents have been calculated and fitted to the well-known NRTL model. These NRTL binary interaction parameters have a great importance in modelling the separation steps in the process of obtaining the rubber.

More information

Item ID: 14086
DC Identifier: http://oa.upm.es/14086/
OAI Identifier: oai:oa.upm.es:14086
DOI: 10.1016/j.fluid.2011.06.018
Deposited by: Memoria Investigacion
Deposited on: 19 Dec 2012 12:52
Last Modified: 13 Mar 2017 17:58
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