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Oxidative polymerization of anilinium 5-sulfosalicylate with peroxydisulfate in water

Budimir Marjanović, Ivan Juranić, Slavko Mentus, Gordana Ćirić-Marjanović, and Petr Holler

Centrohem, Vuka Karadžića bb, 22300 Stara Pazova, Serbia

 

E-mail: cenhem@verat.net

Abstract: Anilinium 5-sulfosalicylate was prepared and characterized by elemental analysis, and FTIR and NMR spectroscopies. It was polymerized in an aqueous solution using ammonium peroxydisulfate as an oxidant. The precipitated polyaniline 5-sulfosalicylate exhibited high thermal stability and conductivity of 0.13 S cm−1. Its mass-average molar mass and polydispersity index were determined by gel-permeation chromatography as 22,900 g mol−1 and 2.7, respectively. Elemental analysis and FTIR spectroscopy study of polyaniline 5-sulfosalicylate revealed the doping level and the oxidation state between emeraldine and protoemeraldine salt while corresponding studies of the polyaniline base indicate a small extent of the covalent bonding of 5-sulfosalicylate anions to polyaniline chains.

Keywords: anilinium 5-sulfosalicylate - peroxydisulfate - oxidative polymerization - conducting polymer - Polyaniline

Full paper is available at www.springerlink.com.

DOI: 10.2478/s11696-010-0064-0

 

Chemical Papers 64 (6) 783–790 (2010)

Wednesday, August 17, 2022

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