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Oxidative stability of polyaniline
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SYSNO ASEP 0376674 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Oxidative stability of polyaniline Tvůrce(i) Stejskal, Jaroslav (UMCH-V) RID, ORCID, SAI
Exnerová, Milena (UMCH-V) RID
Morávková, Zuzana (UMCH-V) RID, ORCID
Trchová, Miroslava (UMCH-V) RID, ORCID
Hromádková, Jiřina (UMCH-V) RID
Prokeš, J. (CZ)Zdroj.dok. Polymer Degradation and Stability. - : Elsevier - ISSN 0141-3910
Roč. 97, č. 6 (2012), s. 1026-1033Poč.str. 8 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova polyaniline ; nanotubes ; oxidation stability Vědní obor RIV BK - Mechanika tekutin CEP GA202/09/1626 GA ČR - Grantová agentura ČR GAP205/12/0911 GA ČR - Grantová agentura ČR Institucionální podpora UMCH-V - RVO:61389013 CEZ AV0Z40500505 - UMCH-V (2005-2011) UT WOS 000304641300026 DOI 10.1016/j.polymdegradstab.2012.03.006 Anotace 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 ≈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. Pracoviště Ústav makromolekulární chemie Kontakt Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Rok sběru 2013
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