Conductive polymer "solutions" do not exist, you can make good dispersions which are coloured and nicely transparent (if well done). Which solvent do you plan to use for dispersion? (30 S/cm after e-spinning sounds challenging to me) Please be aware that also after e-spinning, the fibre will consist of about 10 nm small primary particles, you do not get a fibre with straight CP chains along the fibre axis.

Why do you want to "decrease" the conductivity of the polymer (solution) dispersion?

regarding CP solution / dispersion, you can find several articles in my RG site, e.g. https://www.researchgate.net/publication/202290125_Conductive_Polymer__Solvent_Systems_Solutions_or_Dispersions

regarding CP structure / morphology, you may want to read this article: 

https://www.researchgate.net/publication/49593603_New_Insight_into_Organic_Metal_Polyaniline_Morphology_and_Structure

and search for more in my RG pages.

Article Conductive Polymer / Solvent Systems: Solutions or Dispersions?

Article New Insight into Organic Metal Polyaniline Morphology and Structure

thank you, Bernhard. there are some misunderstanding. 1) the solution i used for electrospinning showed conductivity of about 30 mS/cm (not 30 S/cm) 2) the solvent i used is water 3) it is solution, not dispersion 4)

it may be possible to electro-spin, I would assume it is depending on concentration and viscosity