Yes. I think the method described in the attached reference is a simple one. I hope that it will help in your work. Good luck.

be carful. the materials obtained by chemical or electrochemical polymerization have different properties.

Thanks Dr. Nizar and Daniel. In fact, i have the report but may be the ratio of 1.25 was not maintained in our exp.

electrochemical

Thank you Dr. Nirul Masurkar but can you elaborate on the procedure given in Archives of applied Science Research, 2011, 3(6): 147-53.

It seems simple and for me electrochemical approach is preferable but specific voltage for the electrochemical polymerization at ss electrodes has not been given.

Hello, Dear, i think you can find most easy method in following paper for chemical synthesis.

http://faculty.mu.edu.sa/public/uploads/1346011386.44287405x0857.pdf

what you can do, just take aniline, add concentrted HCl untill the solution becomes thick, soon it will change into white solid. filter, dry and you will get aniline hydrochloride (beware, it is highly carcinogenic)

take aniline hyrdrochloride and peroxide solution and mix them, you will get polyaniline. quantities can be seen in attached paper

Thank you Asif! i have the report but i was not trying solid aniline hydrochloride. i will do that and also the simple electrochemical method suggested elsewhere. If possible, provide your email id.

I think chemical method of polymerization is easier. Take 1.82 ml of aniline monomer in 200 ml of distilled water and add 0.309 ml of HCl on a beaker. In another beaker take 5.71 g of ammonium persulfate and dissolve in 100 ml of water. Then add drop wise this APS solution to the aniline solution and stir it for 24 hours to get best result. Then dry for 1 day at 50 deg c. By this way you can get polyaniline nanotubes.

Thank you Abdullah!

Actually the problem in my case was the old APS. With the new pack, preparation of PANI was damn simple. As it is an exothermic reaction, it is better to do the reaction on an ice bath with distilled aniline (under partial vacuum). Handling of aniline, obviously requires extreme caution.

i would like to thank once again Dr. Nizar, Daniel, Nirul, Asif and Abdullah

I think this paper is good:

POLYANILINE. PREPARATION OF A CONDUCTING POLYMER

(IUPAC Technical Report)

Prepared for publication by

J. STEJSKALi

Pure Appl. Chem, Vol. 74, No. 5, pp. 857—867, 2002.

The polymerization of aniline was designed to be as simple as possible.

The synthesis was basedon mixing aqueous solutions of aniline hydrochloride and ammonium peroxydisulfate at room

temperature, followed by the separation of PANI hydrochloride precipitate by filtration and drying.

Dear Fatemah

this reference was given in earlier posts. It is good to do the reaction (exothermic) on ice bath, adding liquid nitrogen to keep the temp. down.

For composites of PANI, in-situ polymerization is advantageous.