Sigma-Aldrich SULFONATED POLY(ETHER ETHER KETONE) PR

The exceptional properties of sulfonated PEEK make it an ideal choice for various applications, most notably in fuel cell technology and water purification. In fuel cells, sulfonated PEEK functions as a proton exchange membrane (PEM), allowing the transport of protons while preventing the mixing of gases. Its ability to operate at high temperatures and maintain proton conductivity contributes to the overall efficiency of fuel cell systems. Additionally, sulfonated PEEK′s high proton conductivity is leveraged in water purification and desalination processes, facilitating the separation of ions and impurities for effective water treatment. Beyond these applications, sulfonated PEEK is employed in high-performance capacitors, sensors, and various industries such as aerospace, automotive, and electronics, where its thermal resistance, chemical durability, and proton conductivity are essential for reliable performance in demanding environments.