| abstract |
Disclosed are epoxy-functionalized perfluoropolyether polyurethane compounds having the following general structure (R f QX 1 C(O)NH) m —R i —(NHC(O)X 2 Q(E) o ) n wherein R f is a monovalent perfluoropolyether moiety; Q is independently a connecting group of valence at least 2, which may contain heteroatoms; X 1 is O, S, or NR, wherein R is H or a lower alkyl of 1 to 4 carbon atoms; R i is a residue of a multi-isocyanate; X 2 is O, S, or NR, wherein R is a lower alkyl of 1 to 4 carbon atoms; E is an organic group having at least one oxirane ring; m is at least 1; n is at least 1; o is 1, 2 or 3; and m+n is from 2 to 10. |