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


Autoria(s): Diaz Moreno, Francisco Ismael; Ovejero, G.; Romero, M.D.; Diaz, I.
Data(s)

01/09/2011

Resumo

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.

Formato

application/pdf

Identificador

http://oa.upm.es/14086/

Idioma(s)

eng

Publicador

E.T.S.I. Industriales (UPM)

Relação

http://oa.upm.es/14086/2/INVE_MEM_2011_121319.pdf

http://dx.doi.org/10.1016/j.fluid.2011.06.018

info:eu-repo/semantics/altIdentifier/doi/10.1016/j.fluid.2011.06.018

Direitos

http://creativecommons.org/licenses/by-nc-nd/3.0/es/

info:eu-repo/semantics/openAccess

Fonte

Fluid Phase Equilibria, ISSN 0378-3812, 2011-09, Vol. 308, No. 1-2

Palavras-Chave #Ingeniería Industrial #Química
Tipo

info:eu-repo/semantics/article

Artículo

PeerReviewed