Aquivion(R) PFSA dispersions are based on the short-side-chain (SSC) copolymer of Tetrafluoroethylene and the Sulfonyl Fluoride Vinyl Ether (SFVE) CF2=CF2-O-(CF2)2-SO2F industrially produced by Solvay Specialty Polymers. The resulting perfluoropolymer's functional groups are in their sulfonic acid form, SO3H.
Synonyms: Aquivion(R) SO3H-form; Tetrafluoroethylene-perfluoro(3-oxa-4-pentenesulfonic acid) copolymer, Ethanesulfonic acid
Linear Structural Formula: (C4HF7O4S .C2F4)x
Density: 1.14 g/mL
Application: Aquivion(R) D79-25BS can be used as a formulation additive for production of polymer electrolyte fuel cell electrodes, manufacture or repair of cation-exchange membranes, surface coatings of PTFE membranes to improve their wetting behavior or for the development of superacid catalysts. Addition of further film-forming and/or other volatile or non-volatile chemicals is necessary to impart the desired processing and end-product characteristics.
Legal Information: Aquivion(R) is a registered trademark of Solvay Specialty Polymers.