| US 7,572,879 B2 | ||
| Fluorinated alkyl substituted-thieno[3,4-b]thiophene monomers and polymers therefrom | ||
| Steffen Zahn, Pennsburg, Pa. (US); Gauri Sankar Lal, Whitehall, Pa. (US); William Franklin Burgoyne, Jr., Bethlehem, Pa. (US); Kristen Elaine Minnich, Germansville, Pa. (US); Andrew Francis Nordquist, Whtehall, Pa. (US); Lloyd Mahlon Robeson, Macungie, Pa. (US); and Francis Joseph Waller, Allentown, Pa. (US) | ||
| Assigned to Air Products and Chemicals, Inc., Allentown, Pa. (US) | ||
| Filed on May 05, 2006, as Appl. No. 11/418,317. | ||
| Application 11/418317 is a continuation in part of application No. 11/128538, filed on May 13, 2005, granted, now 7,432,340. | ||
| Application 11/128538 is a continuation in part of application No. 10/958068, filed on Oct. 04, 2004, granted, now 7,118,692. | ||
| Application 10/958068 is a continuation in part of application No. 10/193598, filed on Jul. 11, 2002, granted, now 7,071,289. | ||
| Prior Publication US 2006/0223977 A1, Oct. 05, 2006 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. C08G 73/24 (2006.01); C08G 75/00 (2006.01); C08F 4/80 (2006.01) | ||
| U.S. Cl. 528—377 [528/373; 528/401; 528/486; 528/499; 528/503; 525/535; 524/82; 524/84] | 12 Claims |
1. A composition of matter represented by the formula
 wherein R is a partially or fully fluorinated primary, secondary or tertiary alkyl having from 1 to 8 carbon atoms; and
X and X′ are independently selected from the group consisting of a polymerizable cyclic pi-conjugated carbon-ring structure
optionally comprising S, N or O heteroatoms, and phenyl, naphthyl, pyrryl, dithienyl, thienyl and their respective substituted
derivatives.
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