Some physicochemical properties of perfluoropolyether surfactants

Two series of surface active agents have been obtained, starting from intermediate products of HFP and TFE photooxidation :

Structural, physical and chemical properties have been summarized.Surface activity of the products in aqueous solution was examinated in terms of c.m.c. and H.L.B.Molecular cross section areas, derived from surface tension and Langmuir trough measurements, have been related to structural parameters.