METHOD FOR PRODUCING PERFLUOROETHER OLIGOMERS HAVING TERMINAL CARBOXYLIC ACID GROUPS

摘要

METHOD FOR PRODUCING PERFLUOROETHER OLIGOMERS HAVING TERMINAL CARBOXYLIC ACID GROUPS A method is disclosed for producing perfluoroether oligomers having terminal carboxylic acid groups. In this method, a polyether, such as polyethylene oxide, having a molecular weight higher than the product to be produced is fluorinated in a direct fluorination apparatus. The polyether is fragmented during fluorination and significant yields of the desired oligomer are obtained.