Patent ID: 7507771

Claim:
An ion conductive copolymer having the formula: —((Ar 1 —X 1 —Ar 2 —X 2 —Ar 3 —X 3 ) m —Ar 1 —X 1 —Ar 2 —) a /((Ar 4 —X 4 —Ar 5 —X 5 —Ar 6 —X 6 ) n —Ar 4 —X 4 —Ar 5 —) b /(—Ar 7 —X 7 —Ar 8 —) c R 1 —Ar 9 —Y—Ar 10 —R 2 — where —((Ar 1 —X 1 —Ar 2 —X 2 —Ar 3 —X 3 ) m —Ar 1 —X 1 —Ar 2 —) a and ((Ar 4 —X 4 —Ar 5 —X 5 —Ar 6 —X 6 ) n —Ar 4 —X 4 —Ar 5 —) are different hydrophobic oligomers, where Ar 1 , Ar 2 , Ar 4 , Ar 5 , Ar 7 , Ar 8 , Ar 9 and Ar 10 are independently phenyl, substituted phenyl napthyl, terphenyl, aryl nitrile, substituted aryl nitrile, and Ar 7 and/or Ar 8 further comprise an ion conducting group, X 1 and X 4 are independently —C(O)— or —S(O) 2 , X 2 , X 3 , X 5 and X 6 are independently —O— or —S—; X 7 is a bond, —C(O)— or S(O) 2 —, Ar 3 and Ar 6 are the same or different from each other and are and wherein the ion conductive groups comprise SO 3 − , —COO − , H 2 PO 3 − or sulfonimide; R 1 and R 2 are independently —O— or —S—, wherein a, b and c are independently between 0.01 and 0.98 and a+b+c=1, wherein m is between 1 and 12, n is between 1 and 12, and wherein Y is a bond, —C(O)—, —S(O 2 )—, and Ar 10 may be present or absent when Y is a bond.