METHOD FOR PREPARING PERFLUOROALLYLFLUOROSULFATE

FIELD: chemical technology. ^ SUBSTANCE: invention relates to a method for synthesis of perfluoroallylfluorosulfate that can be used in production of polymers. Invention describes a method for synthesis of perfluoroallylfluorosulfate that involves interaction of hexafluoropropylene with sulfuric anhydride in the presence of boron trifluoride. Method involves mixing hexafluoropropylene with 20-80% of boron trifluoride of its the total measured amount, and the following feeding a mixture of sulfuric anhydride and remain amount of boron trifluoride that is heated preliminary to temperature 70-90°C. Addition of phosphorus pentoxide in the amount 0.02-0.03 mole of phosphorus pentoxide per 1 mole of sulfuric anhydride to reactor is desirable. Invention provides increasing yield of the end product by 10-17%. ^ EFFECT: improved method of synthesis. ^ 2 cl, 1 tbl, 7 ex