I  U  P  A  C






News & Notices

Organizations & People

Standing Committees

Divisions

Projects
..current
..completed
..new
..information

Reports

Publications

Symposia

AMP

Links of Interest

Search the Site

Home Page

 

 

Project

Macromolecular Division (IV)

 

Number: 2002-019-1-400

Title: Conducting polymer colloids and nanofilms

Task Group
Chairman:
J. Stejskal

Members: S. Fedorova, J. Janca, P. Mokreva, M. Omastova, J. Prokes, A. Riede, I. Sapurina, T.V. Shishkanova, M. Špirkova, L. Terlemezyan, M. Tobolkova, and M. Trchova

Completion Date: 2005 - project completed

Objective:
The design of processible forms of conducting polymers. Preparation of water-borne polyaniline colloids and in situ polymerized films of submicrometre thickness.

Description:
The development of processible forms of conducting polymers by the formation of colloids and thin nanofilms is proposed. The colloids are produced during the oxidation of aniline with ammonium peroxydisulfate in acidic aqueous medium in the presence of a suitable polymeric stabilizer [1]. The polyaniline films grow in situ under similar reaction conditions virtually on any surface (or interface) [2]. The various macroscopic and microscopic substrates coated with conducting-polymer overlayer find uses in analytical chemistry, separation science, organic catalysis, conducting composite materials and in the development of microelectronics. Especially the nanofilms are of interest because of the brush-like ordering of polymer chains in them [2]. The project proposes to follow the same preparative protocol in various laboratories and to compare the properties of the resulting materials on international level. For the colloidal forms, the particle size and polydispersity determined by dynamic light scattering will be the main criterion. The films will be compared with respect to their thickness by using optical absorption measurements after calibration.

This project continues the work on conducting polymers after the completion of the IUPAC project 1999-024-1-400 in 2002 (cf. "Polyaniline: The Preparation of a Conducting Polymer", Pure Appl. Chem. Vol. 74, No. 5, 857-867 (2002).

[1] J. Stejskal, J. Polym. Mater. 18, 225-258 (2001).
[2] I. Sapurina, A. Riede, J. Stejskal, Synth. Met. 123, 503-507 (2001).

Progress:
In May 2004, a draft titled "Polyaniline. Thin Films and Colloidal Dispersions", has been submitted to Pure Appl. Chem. The Technical Report was revised and accepted for publication in Oct 2004; scheduled for print early 2005.

project completed - IUPAC Technical Report titled "Polyaniline: Thin films and colloidal dispersions" published in Pure Appl. Chem. 77(5), 815-826, 2005

Last update: 9 May 2005

<project announcement published in Chem. Int. 24(5) 2002>

 

Questions or Comments about this Project
Please contact the Coordinator


Page last modified 9 May 2005
Copyright ©1997-2005 International Union of Pure and Applied Chemistry.
Questions or comments about IUPAC, please contact, the Secretariat.
Questions regarding the website, please contact web manager.