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New organic dispersions of conducting polymers using polymeric ionic liquids as stabilizers
journal contribution
posted on 2005-07-21, 00:00 authored by R Marcilla, E Ochoteco, Cristina Pozo-GonzaloCristina Pozo-Gonzalo, H Grande, J A Pomposo, D MecerreyesPolypyrrole (PPy), polyaniline (PANI), and poly(ethylenedioxythiophene) (PBDOT) disper-prepared by polymerizig the corresponding monomer in the of a polymeric liquid (PIL), poly(1-vinyl-3-ethylimidazolium bromide). By addition of bispentafluoroethanesulfonimide lithium salt, the PIL stabilizer becomes hydrophobic and precipitates in water and the conducting polymer microparticles inside. The of the recovered powders to organic solvents leads to conducting dispersions. After casting the organic dispersions, hydrophobic films with electrical conductivity values as high as 0.1 S · cm -1 were obtained.