There is provided a compound having Formula I or Formula II: In the Formulae: Ar1 is a single bond or an arylene; Ar2 is an aryl group; Ar3 is a single bond or an arylene; R1 is selected from H, D, aryl groups, alkyl groups, silyl groups, siloxane groups, fluoroalkyl groups, alkoxy groups, and fluoroalkoxy groups, or the two R1 groups may be joined together to form an aliphatic ring having 5-10 carbons; R2 is selected from D, aryl groups, alkyl groups, silyl groups, siloxane groups, fluoroalkyl groups, alkoxy groups, or fluoroalkoxy groups; M is a conjugated moiety; a is an integer from 0 to 2; b is an integer from 0 to 3; n is an integer equal to or greater than 1; and x and y are mole fractions where x+y=1.0.