Aquivion(R) P87S-SO2F are pellets 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 sulfonyl fluoride form, SO2F. The polymer of this grade is chemically stabilized and therefore contains a maximized ratio of inert R-CF3 end-groups.
Synonyms: Aquivion(R) SO2F-form; Perfluoro(3-oxa-4-pentenesulfonyl fluoride)-tetrafluoroethylene copolymer, Ethanesulfonyl fluoride
Linear Structural Formula: [CF2CF(OCF2CF2SO2F)]m[CF2CF2]n
Application:
•Aquivion(R) P87S pellets can be melt-pressed or extruded into plates, sheets or thin films down to about 50mu. The extruder shall be equipped with a standard three-zone metering screw devoid of barrier or mixing elements. Optimum temperature settings will depend on the configuration of the equipment but generally cover 100 to 300C range. Optionally functional groups in the molded part are then hydrolyzed in baths or wet benches with a heated base (NaOH, KOH etc), reaction which may take minutes or hours, depending on thickness and conditions.
•Aquivion(R) P87S pellets can be directly hydrolyzed as described - either completely or only on their outer surface. This will enable functional activity of the sulfonic acid / sulfonyl salt groups for ion-exchange operations or as acid catalyst.
Legal Information: Aquivion is a registered trademark of Solvay Group