Issue 10, 2002

Emulsion polymerization pathway for preparation of organically soluble polyaniline sulfate

Abstract

In this work, aniline was polymerized directly to polyaniline sulfate salt without using protic acid. Polyaniline sulfate salt was prepared by an emulsion polymerization pathway using surfactants such as anionic surfactant (sodium lauryl sulfate), cationic surfactant (cetyltrimethylammonium bromide) and non-ionic surfactant (polyethylene glycol octadecyl ether). Anionic/cationic surfactants yield polyaniline sulfate salt in organic phase and non-ionic surfactant yields polyaniline sulfate in powder form. The dopant, i.e. sulfate ion, in polyaniline sulfate salt was generated from ammonium persulfate which was used to oxidize aniline. Ammonium persulfate acts both as an oxidizing agent and as a doping agent in the polymerization process of aniline to polyaniline sulfate salt. The spectral and electrical properties of the polyaniline salt synthesized by the emulsion polymerization pathway are compared with those of the polyaniline salt prepared by an aqueous polymerization pathway using sulfuric acid as protic acid.

Graphical abstract: Emulsion polymerization pathway for preparation of organically soluble polyaniline sulfate

Article information

Article type
Paper
Submitted
11 Jul 2001
Accepted
16 May 2002
First published
20 Aug 2002

New J. Chem., 2002,26, 1490-1494

Emulsion polymerization pathway for preparation of organically soluble polyaniline sulfate

S. Palaniappan and V. Nivasu, New J. Chem., 2002, 26, 1490 DOI: 10.1039/B106222K

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements