poly(9,9-bis(6'-(N,N,N-trimethylammonium)hexyl)-fluorenyldivinylene-alt-4,7-(2,1,3-benzothiadiazole) dibromide)
poly(9,9-bis(6'-(n,n,n-trimethylammonium)hexyl)-fluorenyldivinylene-alt-4,7-(2,1,3-benzothiadiazole) dibromide)