Chemistry International
Vol. 22, No. 5, September 2000

2000, Vol. 22
No. 5 (September)
..Chemistry in Chile
..IUPAC Prize
..Air Quality in Denmark
..Highlights from the Web

..Reports from Symposia

..New Projects
..News and Notices
..Awards and Prizes
..New Books
..Provisional Recommendations
..Reports from Commissions
..Conference Announcements
..Conference Calendar

Download the September
issue in pdf format.
(463K)

Download the September
cover in pdf format.
(44K)


CI Homepage

Chemistry International
Vol. 22, No. 5
September 2000

 

New Project


Polyaniline: Recommendations for Preparation of Conducting Polymer and its Colloidal Form

An ever-growing number of papers reflects the increasing interest in conducting polymers [1], in their processing, and in the studies of their specific forms, such as colloidal dispersions [2]. 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 IUPAC’s 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 IUPAC’s 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: stejskal@imc.cas.cz. See http://www.iupac.org/divisions/current_ projects/2000/990241_400_00.html for project description and update.

1. A. G. MacDiarmid. Synth. Met. 84, 27—34 (1997).

2. J. Stejskal, M. Spírková, A. Riede, M. Helmstedt, P. Mokreva, J. Prokes. Polymer 40, 2487—2492 (1999).

 

IUPAC Homepage

IUPAC

 


News and Notices - Organizations and People - Standing Committees
Divisions - Projects - Reports - Publications - Symposia - AMP - Links
Page last modified 20 August 2000.
Copyright © 1997-2000 International Union of Pure and Applied Chemistry.

Questions or comments about IUPAC, please contact the Secretariat.
Questions regarding the website, please contact iupachelp@iupac.org