Тип публикации: статья из журнала

Год издания: 2023

Идентификатор DOI: 10.3390/ma16041525

Ключевые слова: lignin, diazonium compounds, azo lignins, cis-trans isomerism, photosensitivity

Аннотация: Water-soluble azo derivatives of lignin were synthesized by the azo coupling reaction using organosolv ethanol lignin and diazonium salts based on sulfanilic acid and p-nitroaniline. The structure of azo derivatives of lignin were studied by nuclear magnetic resonance, Fourier-transform infrared spectroscopy, and gel permeation chrПоказать полностьюomatography. It was found that the azobenzene bonds formed in the azo coupling reaction of macromolecules impart the photosensitive properties to the synthesized polymers via cis–trans photoisomerization of the diazobenzene group. It was shown experimentally that the synthesized polymers exhibited good solubility both in the aqueous media in a wide (2–12) pH range and in DMSO and THF organic solvents, which opens up new prospects for their application.

Журнал: Materials

Выпуск журнала: Т.16, №4

Номера страниц: 1525

ISSN журнала: 19961944

Место издания: Basel

• Borovkova Valentina S. (School of Non-Ferrous Metals and Materials Science, Siberian Federal University)
• Malyar Yuriy N. (School of Non-Ferrous Metals and Materials Science, Siberian Federal University)
• Vasilieva Natalia Yu. (School of Non-Ferrous Metals and Materials Science, Siberian Federal University)
• Skripnikov Andrey M. (School of Non-Ferrous Metals and Materials Science, Siberian Federal University)
• Ionin Vladislav A. (School of Non-Ferrous Metals and Materials Science, Siberian Federal University)
• Sychev Valentin V. (School of Non-Ferrous Metals and Materials Science, Siberian Federal University)
• Golubkov Viktor A. (Institute of Chemistry and Chemical Technology, Krasnoyarsk Science Center, Siberian Branch, Russian Academy of Sciences)
• Taran Oxana P. (School of Non-Ferrous Metals and Materials Science, Siberian Federal University)

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