Patent ID: 8529794
Filing Date: 2013-09-10
Classification: C08G,C09K,H01L,Y02E

Abstract:
1. A polymer of the formula wherein one of X R R P is a polymerizable group, Sp is a spacer group or a single bond, X R Ar in case of multiple occurrence independently is selenophene-2,5-diyl, thiophene-2,5-diyl, thieno[3,2-b]thiophene-2,5-diyl, thieno[2,3-b]thiophene-2,5-diyl, selenopheno[3,2-b]selenophene-2,5-diyl, selenopheno[2,3-b]selenophene-2,5-diyl, selenopheno[3,2-b]thiophene-2,5-diyl, selenopheno[2,3-b]thiophene-2,5-diyl, 1,4-phenylene, pyridine-2,5-diyl, pyrimidine-2,5-diyl, p-p′-biphenyl, naphthalene-2,6-diyl, benzo[1,2-b:4,5-b′]dithiophene-2,6-diyl, 2,2-dithiophene, 2,2-diselenophene, thiazole and oxazole, all of which are mono- or polysubstituted by R R m is 1, 2, 3 or 4, and n is an integer>10.