About: Oxidation of aniline with silver nitrate accelerated by p-phenylenediamine: A new route to conducting composites

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	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. 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. (en)
Title	Oxidation of aniline with silver nitrate accelerated by p-phenylenediamine: A new route to conducting composites Oxidation of aniline with silver nitrate accelerated by p-phenylenediamine: A new route to conducting composites (en)
skos:prefLabel	Oxidation of aniline with silver nitrate accelerated by p-phenylenediamine: A new route to conducting composites Oxidation of aniline with silver nitrate accelerated by p-phenylenediamine: A new route to conducting composites (en)
skos:notation	RIV/61389013:_____/10:00353218!RIV11-MSM-61389013
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA203/08/0686), P(IAA100500902), P(IAA400500905), P(ME 847), Z(AV0Z40500505), Z(MSM0021620834)
http://linked.open...iv/cisloPeriodika	24
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Stejskal, Jaroslav Trchová, Miroslava Bober, Patrycja
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav makromolekulární chemie AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	277861
http://linked.open...ai/riv/idVysledku	RIV/61389013:_____/10:00353218
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	polyaniline; p-phenylenediamine; silver (en)
http://linked.open.../riv/klicoveSlovo	silver polyaniline p-phenylenediamine
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[DE03AE2BB54D]
http://linked.open...i/riv/nazevZdroje	Macromolecules
http://linked.open...in/vavai/riv/obor	CD
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	http://linked.opendata.cz/resource/domain/vavai/projekt/ME%20847 Surface-enhanced Raman scattering of conducting polymers Preparation and properties of nanostructures produced by condcuting polymers The spectroscopic study of the evolution of polyaniline nanostructures
http://linked.open...UplatneniVysledku	2010
http://linked.open...v/svazekPeriodika	43
http://linked.open...iv/tvurceVysledku	Stejskal, Jaroslav Trchová, Miroslava Prokeš, J. Bober, Patrycja Sapurina, I.
http://linked.open...ain/vavai/riv/wos	000285429400035
http://linked.open...n/vavai/riv/zamer	Progresivní makromolekulární materiály a supramolekulární systémy: syntéza a studium vlastností, jevů a možností využití pro speciální aplikace a moderní technologie Condensed Matter Physics – New Materials and Technologies
issn	0024-9297
number of pages	8 (xsd:int)

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