Affordable Access

Access to the full text

Thermal Decomposition of Polychlorobiphenyls and Their Derivatives

Authors
  • Maiorova, A. V.1, 2
  • Kulikova, T. V.1, 2
  • Safronov, A. P.2, 3
  • Gorbunova, T. I.4
  • Pervova, M. G.4
  • Shunyaev, K. Yu.1, 2
  • 1 Institute of Metallurgy, Ural Branch, Russian Academy of Sciences, Yekaterinburg, 620016, Russia , Yekaterinburg (Russia)
  • 2 Yeltsin Ural Federal University, Yekaterinburg, 620002, Russia , Yekaterinburg (Russia)
  • 3 Institute of Electrophysics, Ural Branch, Russian Academy of Sciences, Yekaterinburg, 620016, Russia , Yekaterinburg (Russia)
  • 4 Postovsky Institute of Organic Synthesis, Ural Branch, Russian Academy of Sciences, Yekaterinburg, 620137, Russia , Yekaterinburg (Russia)
Type
Published Article
Journal
Russian Journal of Applied Chemistry
Publisher
Pleiades Publishing
Publication Date
Aug 01, 2020
Volume
93
Issue
8
Pages
1254–1260
Identifiers
DOI: 10.1134/S1070427220080194
Source
Springer Nature
Keywords
License
Yellow

Abstract

AbstractThe thermal stability and composition of the gas phase of Sovol technical mixture of polychlorobiphenyls was studied by synchronous thermal analysis and mass spectrometry in comparison with the derivatives synthesized by the reaction of the congeners with sodium methoxide or with polyethylene glycol in the presence of alkali. The obtained mixtures of methoxy + hydroxy + methoxyhydroxy or hydroxy + poly(ethylene glycol)oxy derivatives of polychlorobiphenyls are less stable thermally than the congeners of the Sovol mixture. In pyrolysis of a mixture of methoxy, hydroxy, and methoxyhydroxy derivatives, the vaporization is accompanied by decomposition with the formation of simple volatile substances. No vaporization is observed in the course of oxidative thermal decomposition of a mixture of hydroxy and poly(ethylene glycol)oxy derivatives. Thermal decomposition of the derivatives requires lower power consumption compared to polychlorobiphenyls and is characterized by decreased emission of hazardous chlorinated compounds.

Report this publication

Statistics

Seen <100 times