PROCESS FOR PREPARING CONTROLLED MOLECULAR WEIGHT PERFLUOROPOLYETHERS HAVING PERFLUOROALKYL OR PERFLUOROCHLOROALKYL END GROUPS

摘要

An improved process for preparing perfluoropolyethers having neutral end groups is disclosed, said process being based on the photooxidation of C3F6 and/or C2F4 and resulting in high yields of useful products, i.e. in products of controlled molecular weight, having perfluoroalkyl or perfluorochloroalkyl end groups.