✦ LIBER ✦

Preferential solvation of poly(dimethylsiloxane) and poly(methyl methacrylate) in benzene-methanol mixtures by gel permeation chromatography

✍ Scribed by A. Campos; L. Borque; J.E. Figueruelo

Publisher: Elsevier Science
Year: 1977
Tongue: English
Weight: 535 KB
Volume: 140
Category: Article
ISSN: 1873-3778
DOI: 10.1016/s0021-9673(00)93581-7

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✦ Synopsis

Preferential solvation 1 parameters for the ternary systems benzene-methano!-poIy(dimethylsiloxane) and benzene-methanol-poly(methy1 methacrylate) have been determined by gel permeation chromatography. When benzene is preferentially adsorbed by the polymer, _good agreement is found between i! values determined by this method and by light scattering and dialysis equilibrium. However, when methanol is preferentially adsorbed by the polymer, discrepancies arise. The differences are discussed in terms of interactions between the solvent and the chromatographic support.

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