| abstract |
Improved charge transport material having the formula: n nY-Z-X-E nwhere E comprises a functional group selected from the group consisting of a reactive ring group, a vinyl ether group, an acrylamido group, and a methacrylamido group; X comprises a bond, O, S, an aminylene group, a sulfonyl group, an organic linking group, or a combination thereof; Z comprises a 1,3,6,8-tetraoxo-1,3,6,8-tetrahydrobenzo[lmn][3,8]phenanthroline-2,7-diyl group; and Y comprises H or an organic group, such as an alkyl group, an aryl group, an aromatic heterocyclic group, and combinations thereof. |