Polyaniline doped with organic dopants such as camphorsulfonic acid was prepared in different organic solvents. The doped polyanilne in m-cresol solution behaves as a weak polyelectrolyte and in chloroform as a neutral polymer. The number of effectively doped sites of polyaniline is controlled by the solvent quality and instead of the compact coil-to-expanded coil model an alternative model has been proposed based on the solvent quality.