The first stages of chemical and electrochemical aniline oxidation - spectroscopic comparative study

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F20%3A00523939" target="_blank" >RIV/61389013:_____/20:00523939 - isvavai.cz</a>
Result on the web
<a href="https://www.mdpi.com/2076-3417/10/6/2091" target="_blank" >https://www.mdpi.com/2076-3417/10/6/2091</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/app10062091" target="_blank" >10.3390/app10062091</a>

Result language
angličtina
Original language name
The first stages of chemical and electrochemical aniline oxidation - spectroscopic comparative study
Original language description
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.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10404 - Polymer science

Project
<a href="/en/project/GJ18-01924Y" target="_blank" >GJ18-01924Y: Vibrational spectroscopy and spectroelectrochemistry of the first products formed during conducting polymer preparation</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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