Controlled synthesis of α,β‐difunctional poly(hexafluoropropylene oxide)

Abstract

Abstract An improved method is described for the preparation of difunctional poly(hexafluoropropylene oxide) of moderate molecular weight ( M n ≈ 6000) in good yield (>80 wt.‐%). With the dependence of chain transfer constant on initiator concentration known, at least under controlled conditions, good molecular‐weight control can be achieved.