Patent ID: 7888433

Claim:
A polymer comprising polymer segments 1 and 2: E 1 (Z 1 ) d —P 1 -Q 1 -P 2 [1] E 2 (Z 1 ) f —P 3 [2] wherein: Z 1 is —SO 2 X, —PO 3 H 2 , or —COX; E 1 , E 2 is an aromatic or aliphatic-containing moiety wherein at least one of E 1 and E 2 include an aromatic substituted with Z 1 ; X is an —OH, a halogen, an ester, or d is the number of Z 1 functional groups attached to E 1 ; f is the number of Z 1 functional groups attached to E 2 ; P 1 , P 2 , and P 3 are each independently absent, —O—,—S—, —SO—,—SO 2 , —CO—, —NH—, NR 2 —, or —R 3 —, and R 2 is C 1-25 alkyl, C 1-25 aryl or C 1-25 arylene; R 3 is C 1-25 alkylene, C 1-25 perfluoroalkylene, perfluoroalkyl ether, alkyl ether, or C 1-25 arylene; R 4 is trifluoromethyl, C 1-25 alkyl, C 1-25 perfluoroalkylene, C 1-25 aryl, or another E 1 group; and Q 1 is a fluorinated cyclobutyl moiety, with the proviso that when d is greater than zero, f is zero; and when f is greater than zero, d is zero.