| abstract |
(57) [Summary] (Modified) [Objective] A peroxyperfluoropolyoxyalkylene having a high viscosity and a high molecular weight, and a method for producing the same. [Structure] Viscosity at 20 ° C. is 300,000 to 8,000 50,000 cSt and a peroxide oxygen content of 4 Peroxyperfluoropolyoxyalkylene not exceeding%. This compound can be prepared by subjecting tetrafluoroethylene to photooxidation with oxygen in the presence of pentachlorofluoroethane as a solvent under UV light with a wavelength of 200 to 600 nm. |