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On the possibility of estimating polymer compatibility from viscosity measurements of ternary systems polymer-polymer-solvent

✍ Scribed by B. Böhmer; D. Berek; Ŝ. Florián

Publisher
Elsevier Science
Year
1970
Tongue
English
Weight
397 KB
Volume
6
Category
Article
ISSN
0014-3057

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✦ Synopsis

Abstraet--A study was made of the possibility of estimating the compatibility of polymer pairs by means of viscosity measurements of the corresponding ternary systems polymer-polymer-solvent.

It was established that there are discrepancies between the intrinsic viscosities of ternary systems and those calculated from results on the appropriate binary systems.

Deviations from additivity of intrinsic viscosity values in binary systems and corresponding ternary systems were estabtished.

The viscosity interaction parameters (b,3) for polymer-polymer, according to the model of Krigbaum and Wall, are dependent on the tool. wt, as well as on the natures of the polymers and solvent used. A simple empirical relationship was found between the viscosity interaction parameter (b23) and the Flory-Huggins interaction parameter polymer-polymer (a23).

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