Počet záznamů: 1
The first stages of chemical and electrochemical aniline oxidation - spectroscopic comparative study
- 1.
SYSNO ASEP 0523939 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název The first stages of chemical and electrochemical aniline oxidation - spectroscopic comparative study Tvůrce(i) Morávková, Zuzana (UMCH-V) RID, ORCID
Šeděnková, Ivana (UMCH-V) RID
Bober, Patrycja (UMCH-V) RID, ORCID, SAIČíslo článku 2091 Zdroj.dok. Applied Sciences-Basel. - : MDPI
Roč. 10, č. 6 (2020), s. 1-20Poč.str. 20 s. Jazyk dok. eng - angličtina Země vyd. CH - Švýcarsko Klíč. slova polyaniline ; aniline oligomer ; electrochemistry Vědní obor RIV CD - Makromolekulární chemie Obor OECD Polymer science CEP GJ18-01924Y GA ČR - Grantová agentura ČR Způsob publikování Open access Institucionální podpora UMCH-V - RVO:61389013 UT WOS 000529252800192 EID SCOPUS 85082726747 DOI 10.3390/app10062091 Anotace There are several types of aniline oligomers that can be formed in the early stages of aniline oxidation: linear oligomers with repeating units joined in para positions, and various branched and polycyclic oligomers, being the two most important groups. The fraction of these different oligomeric groups depends upon the reaction conditions of aniline oxidation. The aim of this study was to analyze the first products of the chemical and electrochemical oxidation of aniline at the (starting) pH 1 and 7, in order to specify the conditions of the formation of phenazine-like oligomers, and to test the theory that they have an important role in polyaniline film formation. We have confirmed that phenazine-like oligomers do not form at pH 1, neither in the chemical nor the electrochemical oxidation of aniline. However, they form in both chemical and electrochemical oxidation of aniline at pH 7. Phenazine-like oligomers are thus definitely not necessary intermediates for PANI film formation, not even in the chemical polymerization of aniline. Finally, the redox behavior of phenazine-like oligomers was demonstrated in a medium at pH 1. Pracoviště Ústav makromolekulární chemie Kontakt Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Rok sběru 2021 Elektronická adresa https://www.mdpi.com/2076-3417/10/6/2091
Počet záznamů: 1