Poly[(9,9-dioctyl-2,7-divinylene-fluorenylene)-alt-co-{2-Methoxy-5-(2-ethyl-hexyloxy)-1,4-phenylene}] Poly[2-Methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene]-alt-[(9,9-dioctyl-2,7-diyl)