Process for preparing controlled molecular weight perfluoropolyethers having perfluoroalkyl or perfluorochloroalkyl end groups

摘要

This invention relates to perfluoropolyethers having neutral end groups by a process based on the photooxidation of C3F6 and/or C2F4, thereby obtaining controlled molecular weight products having perfluoroalkyl or perfluorochloroalkyl neutral end groups, with high yields of useful products.