| 摘要 |
The present invention relates to a compound of formula (1), or mixtures thereof: wherein Rf, X, Y, A, p, m, n, r, q, x, M, R1, R2, Z, a, and R6 are defined herein; wherein at least one of p or m is a positive integer; provided that, when q is 0, r is (3-x), and when q is 1, r and x are each 1; provided that, if n is greater than 2, then p is 1; provided that, if m is 0 then Y is a single bond, and if m is a positive integer then Y is O; and provided that when R1 is greater than 8 carbons, the ratio of hetero atoms to carbon atoms is at least 1:2. |
