| abstract |
A polymer of Formula or structure (I) n nwherein at least one of R 1 and R 2 is a suitable hydrocarbon, hydrogen, a heteratom containing group, or a halogen; Ar and Ar′ represent an aromatic moiety; x, y, a, b, c, d, e, f, and g represent the number of groups or rings, respectively; and n represents the number of repeating units. |