Preparation, characterisation, and dielectric properties of polypyrrole-clay composites
-
Seyfullah Madakbaş
,
Emrah Çakmakçı
Abstract
In this study, polypyrrole-clay (PPy-clay) composites were prepared by the in situ chemical oxidative polymerisation of pyrrole in the presence of clay. The chemical structures of the composites were characterised by FTIR and XRD analysis. The thermal properties of these novel composites were analysed by TGA and DSC measurements. Glass-transition temperatures and char yields increased with the increase in clay content in the nanocomposites. The interactions between PPy and clay were mainly between polypyrrole and the layers of clay. It was observed that, as the amount of clay in the composites increased, the dielectric permittivity decreased while the dielectric conductivity of the composite materials increased.
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© 2012 Institute of Chemistry, Slovak Academy of Sciences
Articles in the same Issue
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Articles in the same Issue
- Recent trends and progress in research into structure and properties of polyaniline and polypyrrole — Topical Issue
- Printing polyaniline for sensor applications
- Carbonised polyaniline and polypyrrole: towards advanced nitrogen-containing carbon materials
- Conducting polymer-silver composites
- Electrorheological response of polyaniline and its hybrids
- Effect of PPy/PEG conducting polymer film on electrochemical performance of LiFePO4 cathode material for Li-ion batteries
- Polyaniline micro-/nanostructures: morphology control and formation mechanism exploration
- Self-assembly of aniline oligomers and their induced polyaniline supra-molecular structures
- Self-organization of polyaniline during oxidative polymerization: formation of granular structure
- Influence of ethanol on the chain-ordering of carbonised polyaniline
- X-ray absorption spectroscopy of nanostructured polyanilines
- Effect of cations on polyaniline morphology
- Preparation of polyaniline in the presence of polymeric sulfonic acids mixtures: the role of intermolecular interactions between polyacids
- Chemical degradation of polyaniline by reaction with Fenton’s reagent — a spectroelectrochemical study
- Thin mesoporous polyaniline films manifesting a water-promoted photovoltaic effect
- Polyamide grafted with polypyrrole: formation, properties, and stability
- Effect of ionic liquid on polyaniline chemically synthesised under falling-pH conditions
- Polyaniline doped with poly(acrylamidomethylpropanesulphonic acid): electrochemical behaviour and conductive properties in neutral solutions
- Electrical transport properties of poly(aniline-co-p-phenylenediamine) and its composites with incorporated silver particles
- Bi-hybrid coatings: polyaniline-montmorillonite filler in organic-inorganic polymer matrix
- Preparation of aqueous polyaniline-vesicle suspensions with class III peroxidases. Comparison between horseradish peroxidase isoenzyme C and soybean peroxidase
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- Multi-wall carbon nanotubes with nitrogen-containing carbon coating
- Conducting poly(o-anisidine)-coated steel electrodes for supercapacitors
- Conducting polyaniline/multi-wall carbon nanotubes composite paints on low carbon steel for corrosion protection: electrochemical investigations
- Preparation of a miniaturised iodide ion selective sensor using polypyrrole and pencil lead: effect of double-coating, electropolymerisation time, and current density
- Role of polyaniline morphology in Pd particles dispersion. Hydrogenation of alkynes in the presence of Pd-polyaniline catalysts
- Nanostructured polyaniline-coated anode for improving microbial fuel cell power output
- Antibacterial properties of polyaniline-silver films
- Effect of compression pressure on mechanical and electrical properties of polyaniline pellets
