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Abstract
Conducting poly(o‐ethoxyaniline) (PEOA)/OMMT nanocomposite was synthesized via a solvent intercalation method using organically modified montmorillonite (OMMT). The PEOA was synthesized from a chemical oxidation polymerization, a ring‐substituted polyaniline derivative with an ethoxy group that is soluble in chloroform, was intercalated into interlayers of the clay. Physical properties of the synthesized PEOA/OMMT nanocomposites were characterized via Fourier transform infrared (FT‐IR), scanning electron microscopy (SEM), thermogravimetric analysis (TGA), and X‐ray diffraction (XRD). Furthermore, electrical conductivity of the PEOA/OMMT nanocomposites was found to depend on the intercalation process of the PEOA into clay with both amount and pH of PEOA during its preparation. The nanocomposite with PEOA prepared at pH=1 gave higher conductivity than did that prepared at pH=6.
Acknowledgment
This study was supported by research grants from the Korea Science and Engineering Foundation through the Applied Rheology Center (ARC) at Korea University, Seoul, Korea. In addition, the authors like to thank Professor P. Geil for his very valuable comments on our FT‐IR data interpretation.
