A Template-Free Route to Polypyrrole Nanofibers

A template‐free method for the production of polypyrrole nanofibers is presented. By adding a small amount of bipyrrole into the oxidative polymerization of pyrrole, a drastic change in the morphology of the observed material is observed from large, granular particles to nanofibrils with an average...

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Bibliographic Details
Published in:Macromolecular rapid communications. 2007-12, Vol.28 (24), p.2289-2293
Main Authors: Tran, Henry D., Shin, Koo, Hong, Won G., D'Arcy, Julio M., Kojima, Robert W., Weiller, Bruce H., Kaner, Richard B.
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
nanoparticles
Organic polymers
Physicochemistry of polymers
polymerization
Polymers with particular properties
polypyrroles
Preparation, kinetics, thermodynamics, mechanism and catalysts
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Summary:A template‐free method for the production of polypyrrole nanofibers is presented. By adding a small amount of bipyrrole into the oxidative polymerization of pyrrole, a drastic change in the morphology of the observed material is observed from large, granular particles to nanofibrils with an average diameter of 20 nm. This simple procedure allows for the production of polypyrrole nanofibers without the presence of surfactants or other structural directing agents. The polypyrrole nanofibers can form stable water dispersions which can be cast into films of sufficient quality to function as chemical sensors for analytes such as ammonia.
ISSN:1022-1336
1521-3927
DOI:10.1002/marc.200700581