Intercalated polyaniline/Na-montmorillonite nanocomposites via oxidative polymerization

Celik M., ÖNAL M.

JOURNAL OF POLYMER RESEARCH, vol.14, no.4, pp.313-317, 2007 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 14 Issue: 4
  • Publication Date: 2007
  • Doi Number: 10.1007/s10965-007-9113-y
  • Journal Name: JOURNAL OF POLYMER RESEARCH
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.313-317
  • Keywords: nanocomposites, clay, polyaniline, montmorillonite, conductivity, oxidative polymerization, CLAY NANOCOMPOSITES, COMPOSITE, ROUTE
  • Ankara University Affiliated: Yes

Abstract

This work focuses on the preparation, characterization and electrical conductive properties of intercalated polyaniline/Na-montmorillonite nanocomposites. These materials consisting of polyaniline and Na-montmorillonite were prepared by oxidative polymerization with benzoyl peroxide as oxidizing agent. The synthesized nanocomposites were investigated by a series of characterization techniques; including Fourier transform infrared spectroscopy, X-ray diffraction, scanning electron microscopy, and thermal analysis. X-ray diffraction and scanning electron microscopy images showed that the polyaniline was inserted into the clay layers. The modest increase in layer spacing was as much as 0.53 nm. The thermogravimetric analysis and differential thermal analysis demonstrated the improved thermal stability of the intercalated nanocomposites relative to the pure polyaniline due to the incorporated Na-montmorillonite. The room temperature electrical conductivity of nanocomposites varied from 1.0 x 10(-7) to 5.8 x 10(-5) Scm(-1).