Journal
CHEMICAL PAPERS
Volume 64, Issue 6, Pages 783-790Publisher
SPRINGER INTERNATIONAL PUBLISHING AG
DOI: 10.2478/s11696-010-0064-0
Keywords
anilinium 5-sulfosalicylate; peroxydisulfate; oxidative polymerization; conducting polymer; polyaniline
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Funding
- Ministry of Science and Technological Development of Serbia [142047, 142010]
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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. (C) 2010 Institute of Chemistry, Slovak Academy of Sciences
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