Predictability of properties in ternary n-alkane/butanone/poly(dimethylsiloxane) systems from flory-huggins binary interaction parameters and inversion point in preferential solvation

✍ Scribed by R. Gavara; B. Celda; A. Campos

• Publisher: Elsevier Science
• Year: 1986
• Tongue: English
• Weight: 476 KB
• Volume: 22
• Category: Article
• ISSN: 0014-3057
• DOI: 10.1016/0014-3057(86)90132-1

✦ Synopsis

A~tract--An empirical procedure has been developed, based on the Flory. Huggins theory as generalized by Pouchl~', which permits the calculation of preferential sorption coetficient. 2, and the total sorption term, Y, from previous information on the binary interaction parameters, Z°~, Z.,% and g,~ (~b.~) and of the mixture composition at which the sign of 2 inverts. The obtained expressions were applied to seven cosolvent polymer systems, n-alkane/butanone/poly(dimethylsiloxane), for which experimental values of 2 and Y are known. In all the studied systems, the theoretical predictions are in fair accord with the experimental data.