METHOD OF PREPARING PERFLUOROPOLYETHERS HAVING REGULATED MOLECULAR WEIGHT FROM THE PRODUCT OBTAINED BY PHOTOCHEMICAL OXIDATION OF C.SUB.2F.SUB.4

摘要

A method of preparing perfluoropolyethers having a regulated molecular weight starting from the product obtained by photo chemical oxidation of C2F4 and having a various content of oxygen peroxide, consisting in heattreating the peroxidized product in order to partially remove the oxygen peroxide till reducing it to a relatively low value, which is prefixed as a function of the molecular weight to be obtained for the final product, and in the subsequent treatment with gaseous fluorine at high temperatures.