Polyaniline-silver composites prepared by the oxidation of aniline with mixed oxidants, silver nitrate and ammonium peroxydisulfate: the control of silver content

0368432 - ÚMCH 2012 RIV GB eng J - Journal Article
Bober, Patrycja - Stejskal, Jaroslav - Trchová, Miroslava - Prokeš, J.
Polyaniline-silver composites prepared by the oxidation of aniline with mixed oxidants, silver nitrate and ammonium peroxydisulfate: the control of silver content.
Polymer. Roč. 52, č. 26 (2011), s. 5947-5952. ISSN 0032-3861. E-ISSN 1873-2291
R&D Projects: GA AV ČR IAA400500905; GA AV ČR IAA100500902; GA MŠMT LA09028
Institutional research plan: CEZ:AV0Z40500505
Keywords : conducting polymer * polyaniline * silver
Subject RIV: CD - Macromolecular Chemistry
Impact factor: 3.438, year: 2011

Aniline was oxidized with mixtures of two oxidants, ammonium peroxydisulfate and silver nitrate, to give polyaniline–silver composites with variable content of silver in the composites. The presence of peroxydisulfate has a marked accelerating effect on the oxidation of aniline with silver nitrate. Oxidations in 1 M methanesulfonic acid produced composites in high yield. The molecular structure of the polyaniline was confirmed by UV–visible and FTIR spectra, and the polymeric character was established by gel-permeation chromatography. The content of silver varied between 0 and 70 wt.%. The conductivity of the composites was of the order of units S cm−1. Only at high silver nitrate contents in the reaction mixture, the conductivity of products exceeded 100 S cm−1.
Permanent Link: http://hdl.handle.net/11104/0006716