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Synthesis and Study of Copper-Containing Polymers Based on Sulfated Ethanol Lignin of Abies Wood

Authors :
Alexander S. Kazachenko
Irina V. Korolkova
Maxim A. Lutoshkin
Galina P. Skvortsova
Nikolai G. Maximov
Alexander V. Levdansky
Boris N. Kuznetsov
Natalia Yu. Vasilyeva
Source :
Journal of Siberian Federal University. Chemistry. :142-152
Publication Year :
2020
Publisher :
Siberian Federal University, 2020.

Abstract

For the first time water soluble copper-containing polymers based on sulfated ethanol lignin of abies wood were obtained by the method of ion exchange. Their composition and structure were studied with the use of elemental and chemical analysis, infrared spectroscopy (IR), atomic absorption, electron paramagnetic resonance (EPR). The absence of nitrogen for copper cations in the resulting polymer indicates the complete substitution of ammonium cations in the ammonium salt of sulfated ethanol lignin. In EPR spectrum of copper-containing sulfated ethanol lignin there is a superposition of two signals. One of them belongs to isolated Cu2+ ions, the other to exchange-bound Cu2+ ions in salt-like compounds. The integral intensity of signal of isolated Cu2+ ions (anisotropic signal) and exchange-bound ions (isotropic signal) depends on the copper content in the polymer

Details

ISSN :
23136049 and 19982836
Database :
OpenAIRE
Journal :
Journal of Siberian Federal University. Chemistry
Accession number :
edsair.doi...........0bc4859bd87a031beb884c789c1d6cf7
Full Text :
https://doi.org/10.17516/1998-2836-0170