Polymerization of conducting polymers

Polymerization of conducting polymer using monomer Thiophene. Biomemitics lab at the University of Texas at Austin.

[edfungus]

Trying searching google on electropolymerization of thiophene and aniline in acetonitrile.. those papers might explain it better.

[Hichem]

can i get a film of 1 - 0.5 mm on the ITO using this method .
i have 2 moths :(
there are different methods, but polythiophene is not soluble, so we can't use them

[edfungus]

Ahh I see, I also did aniline aqueously with water and some acid?? I forgot which. If you get it on to the ITO it is not very structurally sound so taking it off the glass is actually pretty hard so it might not make the film you want. I do know there is another method of of using PPY and silk with uses chemical polymerization and makes pretty good films. Haven't done it before but some of my colleagues have

[Hichem]

i must use PTH . it's not insoluble, but maybe soluble a 16/100
in this video You use an electrode ! why ? explain me please :D

[edfungus]

mmm usually if you are lucky .1mm sometimes they are barely there and transparent. If you can't use thiophene since its insoluble.... probably because its organic and you are trying to dissolve it in aqueous? In that case you can't use any organic monomers...

[Hichem]

Hello, I'm on master 2 ( material science ), i live in algeria & i'm working on thiophene polymerization.

i'm surprised to see that, this is amazing . please can u explain me how to do that :p ?

[edfungus]

This is some organic chem. Thiophene is the monomer and we place it in acetonitrile and TBAP an oxidizing agent. The electropolymerization process consist on sending currently through the mixture so that monomer clumps together while being attracted to the ITO glass.

[Hichem]

what about electricity ? high or low ?

i mean 9v for exemple or 220 v & what about intensity? just an idea .

[edfungus]

Basically the difference in voltage creates a driving force for the polymer to adhere to the glass.
That is why you need TBAP or I guess you used CTAB since they are the oxidizing agents that makes the polymer I believe goes to the electrode

[Hichem]

okay thank u my friend, i going to try it :)

the electrode must be in Gold

[jonahjoyaquino]

What’s the concentration of thiophene you used in this experiment sir?