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Oxidation of aniline with silver nitrate accelerated by p-phenylenediamine: A new route to conducting composites
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SYSNO ASEP 0353218 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Oxidation of aniline with silver nitrate accelerated by p-phenylenediamine: A new route to conducting composites Author(s) Bober, Patrycja (UMCH-V) RID, ORCID, SAI
Stejskal, Jaroslav (UMCH-V) RID, ORCID, SAI
Trchová, Miroslava (UMCH-V) RID, ORCID
Prokeš, J. (CZ)
Sapurina, I. (RU)Source Title Macromolecules. - : American Chemical Society - ISSN 0024-9297
Roč. 43, č. 24 (2010), s. 10406-10413Number of pages 8 s. Language eng - English Country US - United States Keywords polyaniline ; p-phenylenediamine ; silver Subject RIV CD - Macromolecular Chemistry R&D Projects IAA400500905 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) IAA100500902 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) GA203/08/0686 GA ČR - Czech Science Foundation (CSF) ME 847 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) CEZ AV0Z40500505 - UMCH-V (2005-2011) UT WOS 000285429400035 DOI 10.1021/ma101474j Annotation The reaction between two non-conducting compounds, aniline and silver nitrate, yields a composite of two conducting products, PANI and silver. While the oxidation of aniline with silver nitrate is slow and takes over several months, the addition of a small amount of p-phenylenediamine, 1 mol % relative to aniline, shortens the reaction time to a few hours and, with higher concentrations of p-phenylenediamine, even to tens of minutes. The chemistry of individual oxidation pathways is discussed. p-Phenylenediamine alone can similarly be oxidized with silver nitrate to poly(p-phenylenediamine) composite with silver. Silver is present in the composites both as nanoparticles of 50 nm size and as larger objects. The semiconductor type of conductivity in polymers and the metallic type of conductivity in silver may compensate to yield composites with conductivity nearly independent of temperature over a broad temperature range. Workplace Institute of Macromolecular Chemistry Contact Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Year of Publishing 2011
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