Potassium perfluoro-octanoate

Ninety milliliters aqueous solution containing 0.75 g of potassium perfluoro-octanoate at a pH of 12 (adjustments were made by the addition of 5%-by-weight potassium hydroxide). 

The polyacrylamide copolymers were prepared by dispersion of 2.0 g of acrylamide and varying amounts of comonomers in a 50 ml capped round bottomed flask containing 20.0 ml of deionized water, 4.0 ml acetone and 0.12-0.25 wt% surfactant (sodiumlauryl sulfate or potassium perfluoro-octanoate). After purging the solution with argon for 30 min, 0.50 ml of a solution of sodium metabisulfite (19.0 mg in 10.0 ml deionized water) and 0.50 ml of a solution of ammonium persulfate (22.8 mg in 10.0 ml deionized water) were injected into the rapidly stirred contents of the flask. Each polymerization was carried out for 24 h at 50 1.0°C. Gels of various... 

Perfluorooctanoyl hypofluoritc is an effective initiator for the polymerization of tetrafluoro-ethene in aqueous or fluorocarbon media at 0"C. For this cxpcrimenl a mixture of perfluoro-fluoroxyalkane and perfluorooctanoyl hypofluorite was used, which was prepared by fluorina-tion of potassium octanoate with fluorine.4... 

---