You can simply prepare polyaniline by chemical oxidative method around refrigirator temperature using distilled anilne (for better results) and oxidising agent available to you. Later you change the obtained polyanilne salt to its base form which can be used to form film for your purpose.

Thank you for your rapid answer. We are specialists in physics but not chemistry. In addition, we have neither the material nor the products to produce this type of material. However, we have experimental devices to make measurements of transient charge and discharge currents at various applied electric field and temperature between -200 and +200 ° C, and Thermally Stimulated Currents and that under controlled atmosphere. More we can do analysis FT-IR and DSC. On the other hand we have the possibility of using measurements at two electrodes instead of the 4-probe method ( sanswich structure)

i can understand your beats... the thing you have to do, is to go through some Journal papers where you can easily find the high conducting polymers and dopents used .. applying your skill select one from them and go through the analysis which you have in your laboratory... to select polymer and dopents Chemistry is not required much but for the analysis of Cyclic Voltametry data..we should go through what actually Redox reactions are..

Thank you very much for your answers. We will try to achieve locally samples hoping that there is no problem of toxicity. Otherwise, what do you think about the solution "buy industrial samples", it could be an interesting alternative?.

On the other hand, can I easily have films of uniform thickness?

Thank you very much for you answer an proposition. I'm open to all suggestions: Sample as a film, or pellet or powder. In fact, we have already worked on polyacetylene doped with iodine (I think I put this article in my publications) and we are interested in the first place is the electrical conductivity of these polymers or organic materials (doped or not). For this, we have a device that can measure very low currents. Thus the only condition is the ability to achieve electrical contacts and introducing the sample into the measuring cell.

for Toxicity you should just go through the reaction happening inside the solution...

Thank you for answer. So we dont need hood, or other protection?

Agfa sell conductive (e.g. 1000ohms/square) PEDOT:PSS inks (for either screen or ink-jet printing) under the tradename Orgacon