Diterminally amine-modified perfluoropolyether compound and preparation thereof, and liquid-repelling composition, cured product and coated substrate containing the same

Abstract

Diterminally amine-modified perfluoropolyether compounds of the general formula (wherein Rf is a perfluoropolyether group; each Ris independently an unsubstituted divalent hydrocarbon group of 1 to 10 carbon atoms; R, Rand Rare each independently substituted or unsubstituted monovalent hydrocarbon groups of 1 to 10 carbon atoms; each Ris independently an unsubstituted divalent hydrocarbon group of 1 to 10 carbon atoms; each Ris independently a hydrogen atom or a substituted or unsubstituted monovalent hydrocarbon group of 1 to 50 carbon atoms which may include at least one oxygen, nitrogen, sulfur or silicon atom; each occurrence of 'm' is independently 0, 1 or 2; and each occurrence of ‘n’ is independently an integer from 0 to 8) are provided. Such compounds have a good solubility in solvents and reactive resins.