| abstract |
In some embodiments, A is a monomeric unit having Formula Ia or Formula IIa, B is a B is a monomeric unit having at least three points of attachment in the copolymer, E is the same or different at each occurrence and is selected from the group consisting of H, D, halide, alkyl, aryl, arylamino, siloxane, crosslinkable groups, deuterated alkyl, deuterated aryl, deuterated arylamino, deuterated siloxane, and deuterated crosslinkable groups, and x, y, and z are the same or different and are mole fractions, such that x+y+z=1, and x and y are non-zero. |