| US 7,507,771 B2 | ||
| Ion conductive copolymers containing one or more hydrophobic oligomers | ||
| Shuguang Cao, Mountain View, Calif. (US); and Kie Hyun Nam, Palo Alto, Calif. (US) | ||
| Assigned to Polyfuel, Inc., Mountain View, Calif. (US) | ||
| Filed on Nov. 12, 2004, as Appl. No. 10/988,187. | ||
| Claims priority of provisional application 60/545293, filed on Feb. 17, 2004. | ||
| Claims priority of provisional application 60/520266, filed on Nov. 13, 2003. | ||
| Prior Publication US 2005/0282919 A1, Dec. 22, 2005 | ||
| Int. Cl. C08J 5/20 (2006.01); C08G 2/00 (2006.01) | ||
| U.S. Cl. 521—25 [521/27; 522/90; 525/242; 528/171; 528/125; 528/128; 528/226; 429/12] | 6 Claims |
| 1. An ion conductive copolymer having the formula:
—((Ar1—X1—Ar2—X2—Ar3—X3)m—Ar1—X1—Ar2—)a/((Ar4—X4—Ar5—X5—Ar6—X6)n—Ar4—X4—Ar5—)b/(—Ar7—X7—Ar8—)cR1—Ar9—Y—Ar10—R2—
where —((Ar1—X1—Ar2—X2—Ar3—X3)m—Ar1—X1—Ar2—)a and ((Ar4—X4—Ar5—X5—Ar6—X6)n—Ar4—X4—Ar5—) are different hydrophobic oligomers,
where Ar1, Ar2, Ar4, Ar5, Ar7, Ar8, Ar9 and Ar10 are independently phenyl, substituted phenyl napthyl, terphenyl, aryl nitrile, substituted aryl nitrile, and Ar7 and/or Ar8 further comprise an ion conducting group, X1 and X4 are independently —C(O)— or —S(O)2, X2, X3, X5 and X6 are independently —O— or —S—; X7 is a bond, —C(O)— or S(O)2—,
Ar3 and Ar6 are the same or different from each other and are
 and wherein the ion conductive groups comprise SO3−, —COO−, H2PO3− or sulfonimide;
R1 and R2 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(O2)—, and Ar10 may be present or absent when Y is a bond.
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