Polyaniline-silver composites prepared by the oxidation of aniline with silver nitrate in acetic acid solutions

0341668 - ÚMCH 2011 RIV GB eng J - Journal Article
Blinova, Natalia V. - Bober, Patrycja - Hromádková, Jiřina - Trchová, Miroslava - Stejskal, Jaroslav - Prokeš, J.
Polyaniline-silver composites prepared by the oxidation of aniline with silver nitrate in acetic acid solutions.
Polymer International. Roč. 59, č. 4 (2010), s. 437-446. ISSN 0959-8103. E-ISSN 1097-0126
R&D Projects: GA AV ČR IAA100500902; GA AV ČR IAA400500905; GA AV ČR KAN200520704; GA ČR GA203/08/0686
Institutional research plan: CEZ:AV0Z40500505
Keywords : polyaniline * silver * conducting polymer
Subject RIV: CD - Macromolecular Chemistry
Impact factor: 2.056, year: 2010

The reaction between two non-conducting chemicals, aniline and silver nitrate, yields a composite of two conducting components, polyaniline and metallic silver. Such conducting polymer composites combine the electrical properties of metals and the materials properties of polymers. In the present study, aniline was oxidized with silver nitrate in solutions of acetic acid; in this context, aniline oligomers are often a major component of the oxidation products. An insoluble precipitate of silver acetate is also present in the samples. The optimization of reaction conditions with respect to aniline and acetic acid concentrations leads to a conductivity of the composite as high as 8000 S cm-1 at ca 70 wt% (ca 21 vol%) of silver.
Permanent Link: http://hdl.handle.net/11104/0005830