화학공학소재연구정보센터
Korea-Australia Rheology Journal, Vol.16, No.4, 193-199, December, 2004
Electrorheological characteristics of poly(o-ethoxy)aniline nanocomposite
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Poly(o-ethoxy)aniline (PEOA)/organoclay nanocomposite was prepared via a solvent intercalation using chloroform as a cosolvent with organically modified montmorillonite (OMMT) clay. The PEOA initially synthesized from a chemical oxidation polymerization in an acidic condition at pH = 1 was intercalated into interlayers of the clay with 25 wt% clay content. Electrical conductivity of the PEOA/OMMT nanocomposite was found to be controlled via the intercalating process. The synthesized PEOA/OMMT nanocomposite was characterized via an XRD and a TGA, and then adopted as an electrorheological (ER) material. The PEOA/OMMT synthesized with controllable electrical conductivity without a dedoping process was found to show typical ER characteristics possessing a yield stress from both steady state and dynamic measurements under an applied electric field.
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