About: Oxidative stability of polyaniline

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://dx.doi.org/10.1016/j.polymdegradstab.2012.03.006
Description	Standard globular and nanotubular polyaniline were exposed to strong oxidants, such as hydrogen peroxide or ammonium peroxydisulfate, in acidic, neutral, and alkaline aqueous media for 10 or 60 days. Even in the mixture of 30% hydrogen peroxide and concentrated sulfuric acid, polyaniline was not completely destroyed and left >30 wt.% residue. In 1 M ammonium peroxydisulfate dissolved in various media, only marginal changes in mass of polyaniline were observed, except for concentrated sulfuric acid where the residue was approximate to 10 wt.%. A partial dissolution of globular polyaniline in acid was responsible for this result. The changes in the molecular structure have been assessed by UV-visible, FTIR, and Raman spectroscopies. The oxidation stability of nanotubular polyaniline was better compared with the common globular form. After the exposure to oxidants in acidic media, the conductivity was reduced but not completely. Standard globular and nanotubular polyaniline were exposed to strong oxidants, such as hydrogen peroxide or ammonium peroxydisulfate, in acidic, neutral, and alkaline aqueous media for 10 or 60 days. Even in the mixture of 30% hydrogen peroxide and concentrated sulfuric acid, polyaniline was not completely destroyed and left >30 wt.% residue. In 1 M ammonium peroxydisulfate dissolved in various media, only marginal changes in mass of polyaniline were observed, except for concentrated sulfuric acid where the residue was approximate to 10 wt.%. A partial dissolution of globular polyaniline in acid was responsible for this result. The changes in the molecular structure have been assessed by UV-visible, FTIR, and Raman spectroscopies. The oxidation stability of nanotubular polyaniline was better compared with the common globular form. After the exposure to oxidants in acidic media, the conductivity was reduced but not completely. (en)
Title	Oxidative stability of polyaniline Oxidative stability of polyaniline (en)
skos:prefLabel	Oxidative stability of polyaniline Oxidative stability of polyaniline (en)
skos:notation	RIV/00216208:11320/12:10126502!RIV13-MSM-11320___
http://linked.open...avai/predkladatel	Matematicko-fyzikální fakulta
http://linked.open...avai/riv/aktivita	I P Z
http://linked.open...avai/riv/aktivity	I, P(GA202/09/1626), P(GAP205/12/0911), Z(AV0Z40500505)
http://linked.open...iv/cisloPeriodika	6
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Prokeš, Jan
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	Univerzita Karlova v Praze / Matematicko-fyzikální fakulta
http://linked.open...dnocenehoVysledku	157552
http://linked.open...ai/riv/idVysledku	RIV/00216208:11320/12:10126502
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Pernigraniline; Oxidation stability; Nanotubes; Polyaniline (en)
http://linked.open.../riv/klicoveSlovo	Polyaniline Nanotubes Oxidation stability Pernigraniline
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[C9A16DCE84D0]
http://linked.open...i/riv/nazevZdroje	Polymer Degradation and Stability
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (xsd:int)
http://linked.open...vavai/riv/projekt	Aniline oligomers and their role in the formation of polyaniline nanostructures –spectroscopic analysis Smart fluids and composites with tunable structure
http://linked.open...UplatneniVysledku	2012
http://linked.open...v/svazekPeriodika	97
http://linked.open...iv/tvurceVysledku	Stejskal, Jaroslav Prokeš, Jan Moravkova, Zuzana Trchova, Miroslava Exnerova, Milena Hromadkova, Jiřina
http://linked.open...ain/vavai/riv/wos	000304641300026
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
issn	0141-3910
number of pages	8 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.polymdegradstab.2012.03.006
http://localhost/t...ganizacniJednotka	11320
is http://linked.open...avai/riv/vysledek of	Oxidative stability of polyaniline

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