I want to prepare conductive polyaniline nanofibers from emeraldine salt (procurred from sigma aldrich) by electrospinning for tissue engineering applications. I recently read from the work by Dr. Bernhard Wessling that only dispersions could be created of conductive polymers like PANi. The solvents suggested so far are either carcinogenic or highly viscous (eg.DMSO). Can you please suggest me other chemicals or polymers which I could use to obtain stable dispersions which can be used for electrospinning?
I've spun emeraldine salt polyaniline (HCl doped) with NMP as a solvent and PVA as a matrix polymer. The solution is quite stable but the electrospun fibers are full of beads. Although pure PANI fibers can be formed by heating to evaporate the matrix polymer, the fibers became non-conductive (EB) due to evaporation of the doping as well.
so I advise you to use polyaniline doped HCSA or DBSA to prepare a more stable solution for electrospinning.
http://scitation.aip.org/content/aip/proceeding/aipcp/10.1063/1.4738460
http://www.scientific.net/SSP.121-123.579
Article Polyaniline Nanofibers: Towards Pure Electrospun PANI
You can use DMF, DMSO, and toluene to have good PANI dispersions for spinning and for further info you can check the following papers:
Maybe you want to check also the following related discussions: https://www.researchgate.net/post/Polyaniline_dissolution https://www.researchgate.net/post/What_are_the_best_solvents_for_Polyaniline_emeraldine_salt https://www.researchgate.net/post/What_are_the_suitable_solvents_for_Polyaniline_salt_PANI-ES_Are_there_also_some_organic_solvents_for_PANI-ES
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