onto a glass plate which was then thermally annealed at 120 u00b0 c for approximately 2 h to remove the casting solution another wet film was formed by spreading a portion of the solution onto a glass plate and immediately immersing a water bath whereupon the polymer precipitated to form a film both films were found to be very brittle before acid doping treatments and the thermally annealed film was noticed to be more of a powder than a film when removed from the glass substrate by means of razor blade this is in contrast to the same preparation performed with 1 02 g of nmp and 0 082 g 1 16 u00d7 10 3 mole of pyrrolidine and 0 304 g of eb gi eb molar ratio 1 4 where a flexible thermally cured dense film was obtained this example clearly shows that a gel inhibitor such as pyrrolidine is not a cosolvent for polyaniline and that while providing enhanced solubility a molar excess of py beyond the claims of the present invention adversely effects the mechanical properties of the film or coating most likely through physical degradation of the polymer to a solution of 0 621 g 6 14 u00d7 10 3 mole of dipropylamine and 0 512 g of nmp which was heated at 68 u00b0 c for about 10 min 0 305 g 8 47 u00d7 10 4 mole.