Solubility characteristics of poly(etheretherketone) and poly(phenylene sulfide)

✍ Scribed by H. N. Beck

• Publisher: John Wiley and Sons
• Year: 1992
• Tongue: English
• Weight: 434 KB
• Volume: 45
• Category: Article
• ISSN: 0021-8995
• DOI: 10.1002/app.1992.070450806

✦ Synopsis

The crystalline high-performance polymers poly ( etheretherketone) (PEEK) and poly(pheny1ene sulfide) (PPS) are generally considered to be highly resistant to dissolution in most common solvents. This article reveals numerous compounds that dissolve in excess of 25 wt % of each polymer at elevated temperatures. Typical binary-phase diagrams depicting the minimum solubility temperature vs. concentration are also presented for several representative polymer-solvent mixtures for both PEEK and PPS. The phenomenon of the solvent-induced crystallization of PEEK is presented. The importance of these polymersolvent systems for the preparation of permselective membranes is discussed.