Preparation and Characterization of Clay (Maghnite-H)/Poly(3,4-Ethylenedioxythiophene) Composites

Affaf Megherbi, Rachid Meghabar, Mohammed Belbachir

Laboratory of Polymers Chemistry, Department of Chemistry, Faculty of Sciences, University of Oran, Oran, Algeria.

DOI: 10.4236/jsemat.2013.31004                

Abstract

Composites of Maghnite-H, a Montmorillonite sheet silicate clay, exchanged with protons, and Poly(3,4-ethylenedioxythiophene) (PEDOT) were prepared by in situ chemical polymerization of the 3,4-ethylenedioxythiophene, without the use of solvent or oxidant. The effect of changing monomer/clay ratio was studied and the resultant composite structures were characterized by Inferred spectroscopy, ²⁷Al and ¹³CSolid-State NMR spectroscopy, scanning electron microscopy and powder X-ray diffraction. All analyses are consistent with a structure were the polymer is (partially) intercalated into the clay structure, which in favourable cases lead to exfoliation. The presence of the clay in the polymer leads to a desired increase in thermal stability as witnessed by thermogravimetry.

Keywords

Poly(3, 4-Ethylenedioxythiophene); PEDOT; Clay; Maghnite-H; Montmorillonite

Conflicts of Interest

The authors declare no conflicts of interest.

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