Patent ID: 8975359
Filing Date: 2015-03-10
Classification: C08G,C09B,H01L,Y02E

Abstract:
1. A polymer comprising: (i) one or more repeating unit(s) of the formula wherein when the polymer comprises repeating units of the formula (ii) a polymer comprising one or more repeating unit(s) of the formula or (iii) a polymer comprising repeating unit(s) of the formula wherein Ar Ar wherein R A is a group of formula a is 0, or an integer of 1, or 2, b is 0, or an integer of 1, or 2, p is 0, or an integer of 1, or 2, y is 0, or 1, q is 0, or an integer of 1, or 2, s is 0, or 1, u is an integer of 1, or 2, t is 0, or 1, v is an integer of 1, or 2, w is 0, or 1, Ar Ar Ar one of X one of X R R B is a group of formula wherein X R and D and E are independently of each other a group of formula or formula I, with the proviso that in case D and E are a group of formula I, they are different from A, wherein k is 1, l is 0, or 1, r is 0, or 1, z is 0, or 1, and Ar wherein one of X c is an integer of 1, 2, or 3, d is an integer of 1, 2, or 3, Ar X R wherein A, B, and D and E are different from each other.