Abstract:
A copolymer comprising a repeat unit A, wherein repeat unit A comprisesa repeat unit B, wherein repeat unit B comprisesandat least one optional repeat unit D, wherein repeat unit D comprises an aryl group. In this copolymer, X, X, X, and Xare independently selected from the group consisting of: H, Cl, F, CN, alkyl, alkoxy, ester, ketone, amide and aryl groups and R, R, R, R, Rand Rare independently selected from the group consisting of: H, Cl, F, CN, alkyl, alkoxy, alkylthio, ester, ketone and aryl groups.