The Influence of the Methylene Blue Dye on the Rate and the Mechanism of the Oxidative Polymerization of Aniline-Reference-Cited by-同舟云学术

The Influence of the Methylene Blue Dye on the Rate and the Mechanism of the Oxidative Polymerization of Aniline

Published:2024-06-12 Issue:16 Volume:225 Page:
ISSN:1022-1352
Container-title:Macromolecular Chemistry and Physics
language:en
Short-container-title:Macro Chemistry & Physics

Author:

Mezhuev Yaroslav¹²^ORCID,Motyakin Mikhail³⁴,Vorobev Igor¹²,Ionova Irina⁴,Baranov Oleg¹,Dvorikova Raisa¹,Tsatsakis Aristidis⁵,Soldatova Anastasia¹²,Svistunova Alina²

Affiliation:

1. Laboratory of Heterochain Polymers A.N. Nesmeyanov Instituite of Organoelement Compounds Russian Academy of Sciences Vavilova Street 28 Moscow 119334 Russia

2. Department of Biomaterials Mendeleev University of Chemical Technology of Russia Miusskaya sq., 9 Moscow 125047 Russia

3. Emanuel Institute of Biochemical Physics Russian Academy of Sciences Kosygina st. 4 Moscow 119334 Russia

4. Semenov Federal Research Center for Chemical Physics Russian Academy of Sciences Kosygina st. 4 Moscow 119991 Russia

5. Center of Toxicology Science & Research Division of Morphology Medical School University of Crete Voutes Campus Heraklion Crete 71003 Greece

Abstract

AbstractIt is shown that one‐electron oxidation of aniline with methylene blue is possible only at low temperatures under UV radiation. The kinetics of aniline polymerization under the action of ammonium persulfate in the presence of catalytic amounts of methylene blue is studied. Kinetic curves are obtained by electron paramagnetic resonance (EPR) spectroscopy at various temperatures and concentrations of methylene blue. The catalytic action of the unassociated form of methylene blue and the deactivation of reactive complexes by the dye dimers are shown to compete. In the context of the obtained results the autocatalysis mechanism of oxidative polymerization is considered, which suggests the formation of complexes of aniline and polyaniline that are subject to subsequent rapid oxidation by the persulfate anion.

Funder

Ministry of Science and Higher Education of the Russian Federation

Publisher

Wiley

Link

https://onlinelibrary.wiley.com/doi/pdf/10.1002/macp.202400082

Reference55 articles.

1. Kinetic peculiarities of chemical aniline polymerization

2. Kinetics of chemical oxidative dispersion polymerization of 3,5-xylidine in aqueous medium using a PH stat method

3. Electrosynthesis of Polyaniline/SiO2 Composite at high pH in the Absence of Extra Supporting Electrolyte

4. Conjugated polyaniline as a result of the benzidine rearrangement

5. Oxidative polymerization of aromatic amines: kinetic features and possible mechanisms