Abstract

The classical Flory-Huggins lattice model and Hildebrand-Scatchard solubility theory are used to develop a novel estimation scheme for determining the polymer-polymer interaction density parameter B 23 from inverse gas chromatography data. The present considerations assume the binary interaction parameters to be concentration-dependent. It is shown that the parameter B 23 is virtually independent of the nature of the probes. Finally, this procedure is performed on various blends of an ethylene-vinyl acetate copolymer and a chlorinated polyethylene with results substantiated by other experimental findings.

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