Vol. 22, No. 5
Polyaniline: Recommendations for Preparation of Conducting Polymer
and its Colloidal Form
An ever-growing number of papers reflects the increasing interest in
conducting polymers , in their processing, and in
the studies of their specific forms, such as colloidal dispersions .
Conducting polymers belong to a family of synthetic metals, of which
polyaniline is a typical representative. The inherent properties of
polyaniline polymer character, color, and electrical conductivity
in connection with the organic nature, predetermine links to the semiconductor
physics; macromolecular, physical, and organic chemistry; and to analytical
and materials sciences. Conducting polymers behave in an "intelligent"
manner; that is, they respond to various external stimuli (temperature,
humidity, presence of gases and vapors, acidity, oxidation, and reduction)
by changing their electrical, optical, and chemical properties. They
are used in sensing, detection, and various monitoring devices, as well
as in the design of new materials.
This collaborative project, supported by IUPACs Macromolecular
Division (IV), has two basic goals. The first one is to define a simple
protocol for the preparation of polyaniline, which, if followed, results
in a product that has well-defined properties. Because colloidal dispersions
of conducting polymers are important for their processing, the project
will then establish the reaction conditions that lead to polyaniline
that is colloidally soluble in aqueous media. This project is being
coordinated by Prof. Jaroslav Stejskal, a National Representative of
IUPACs Commission on Polymer Characterization and Properties (IV.2),
with participation of other members of the Commission.
Any comments and suggestions are welcome and should be sent to the
project coordinator, Dr. Jaroslav Stejskal, Institute of Macromolecular
Chemistry, Academy of Sciences of the Czech Republic, 162 06 Prague
6, Czech Republic. Tel.: +42 02 2040 3351; Fax: +42 02 367 981; E-mail:
[email protected]. See http://www.iupac.org/divisions/current_
projects/2000/990241_400_00.html for project description and update.
A. G. MacDiarmid. Synth. Met. 84, 2734 (1997).
J. Stejskal, M. Spírková, A. Riede, M. Helmstedt, P. Mokreva,
J. Prokes. Polymer 40, 24872492 (1999).