A compound comprising Formula I, or a mixture thereof, wherein Y is a bond or C<；SUB>；m<；/SUB>；H<；SUB>；2m-p<；/SUB>；(OA)<；SUB>；p <；/SUB>；wherein m is 0 to 4, and p is 0 or 1, X' is X or H, X is CH<；SUB>；2<；/SUB>；CH<；SUB>；2<；/SUB>；OA, CH(CH<；SUB>；2<；/SUB>；OA)<；SUB>；2<；/SUB>；, C(CH<；SUB>；2<；/SUB>；OA)<；SUB>；3<；/SUB>；, or X and X' combine to form (CH<；SUB>；2<；/SUB>；CH<；SUB>；2<；/SUB>；)<；SUB>；2<；/SUB>；NCH<；SUB>；2<；/SUB>；CH<；SUB>；2<；/SUB>；OA or (CH<；SUB>；2<；/SUB>；CH<；SUB>；2<；/SUB>；)<；SUB>；2<；/SUB>；O, provided that when X and X' combine to form (CH<；SUB>；2<；/SUB>；CH<；SUB>；2<；/SUB>；)<；SUB>；2<；/SUB>；O then Y is CH<；SUB>；2<；/SUB>；CH(OA)CH<；SUB>；2<；/SUB>；, A is CF<；SUB>；2<；/SUB>；CFHO-R<；SUB>；f <；/SUB>；or H, R<；SUB>；f <；/SUB>；is C<；SUB>；n<；/SUB>；F<；SUB>；2n+1 <；/SUB>；wherein n is an integer of 1 to about 6, M is a cation having a charge equal to a, and a is a positive integer equal to 1 or 2, provided that at least one of X, X', or Y contains A equal to CF2CFHO-R<；SUB>；f<；/SUB>；, and its use in lowering surface tension and imparting improved surface effects.
