Synthesis and electrorheological behavior of semiconducting poly(aniline-co-o-ethoxyaniline)

Poly (aniline-co-o-ethoxyaniline) as one of many conducting polymers was sy nthesized by chemical oxidation polymerization of aniline and o- monomer wi th different molar ratios in an acidic media. By using FT-IR, TGA, SEM and particle size analyzer, we studied chemical structure. particle size and th e particle size distribution of the copolymer, respectively. Electrorheolog ical properties under electric prepared by dispersing the copolyaniline par ticles in silicone oil for several solid volume fractions and their rheolog ical properties under electric field were investigated.