Počet záznamů: 1
Oxidation of aniline with silver nitrate accelerated by p-phenylenediamine: A new route to conducting composites
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SYSNO ASEP 0353218 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Oxidation of aniline with silver nitrate accelerated by p-phenylenediamine: A new route to conducting composites Tvůrce(i) 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)Zdroj.dok. Macromolecules. - : American Chemical Society - ISSN 0024-9297
Roč. 43, č. 24 (2010), s. 10406-10413Poč.str. 8 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova polyaniline ; p-phenylenediamine ; silver Vědní obor RIV CD - Makromolekulární chemie CEP IAA400500905 GA AV ČR - Akademie věd IAA100500902 GA AV ČR - Akademie věd GA203/08/0686 GA ČR - Grantová agentura ČR ME 847 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy CEZ AV0Z40500505 - UMCH-V (2005-2011) UT WOS 000285429400035 DOI 10.1021/ma101474j Anotace 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. Pracoviště Ústav makromolekulární chemie Kontakt Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Rok sběru 2011
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