Small Angle Neutron Scattering (SANS) studies were carried out on (deuterat
ed-PANI)-CSA films with different doping levels. Scattering curves show a b
ump around Q=5x10(-2) Angstrom(-1) which follows a sharp low angle Q(-4) de
cay. These features suggest that the films are heterogeneous and exhibit 30
-100 Angstrom domains related to the doping procedure.