Perfluorinated polyethers having the formula
RfO-(CF₂CF₂O)n-R′f
wherein n is an integer of 1-11 and each of Rf and R′f is a perfluorinated C₁-C₅-alkyl radical, dimers of such polyethers and carbon to carbon intramolecularly coupled cyclic derivatives of such polyethers are produced by direct fluorination of the polyethers in an inert solvent. Compositions of the perfluorinated polyethers and their derivatives are useful as functional fluids.
全氟聚醚,其
化学式为
RfO-(CF₂CF₂O)n-R′f
其中 n 为 1-11 的整数,Rf 和 R′f 各为
全氟 C₁-C₅-烷基,此类聚醚的二聚体以及此类聚醚的碳-碳分子内偶联环状衍
生物是通过在惰性溶剂中直接
氟化聚醚制得的。
全氟聚醚及其衍
生物的组合物可用作功能性液体。