Complexation of polyquinolines (PQs) with functionalized protonic acid
s renders these structures soluble in common organic solvents. Protona
tion of the quinoline units results in a positively charged polymer ba
ckbone which is compensated for by negative charges of the functionali
zed counter-ion. These PQ complexes can be solution-blended with commo
n bulk polymers. Transmission electron microscopy reveals an extremely
homogeneous and fine fibrillar interconnected dispersion of the PQ co
mplex for polyblends containing only a few percent PQ.