Polymer swelling, 13: Correlation of flory–huggins interaction parameter, χ, with molecular structure in polystyrene–liquid systems

✍ Scribed by L. A. Errede

• Publisher: John Wiley and Sons
• Year: 1992
• Tongue: English
• Weight: 819 KB
• Volume: 45
• Category: Article
• ISSN: 0021-8995
• DOI: 10.1002/app.1992.070450409

✦ Synopsis

It is shown that the Flory-Huggins interaction parameters ( X ) , for polystyrene-liquid systems, reported by others, vary linearly with the readily and precisely determinable relative swelling power ( C) of the selfsame liquid, determined in this laboratory using poly (styreneco-divinylbenzene ) as the sorbent polymer. This simple gravimetric method appears to be the most suitable for the determination of X values of polystyrene-liquid systems over the full range of polymer volume fractions. Accordingly, the C values already determined by this method were used to calculate numerous x values for polystyrene-liquid systems not yet reported in the literature. The data obtained thereby show that X reflects sensitively the molecular structure of the liquid.