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New Azo Derivativesof Ethanol Lignin:Synthesis, Structure,and PhotosensitiveProperties : научноеиздание Borovkova Valentina S.Malyar Yuriy N.Vasilieva Natalia Yu.2023 год

New Azo Derivatives of Ethanol Lignin: Synthesis, Structure, and Photosensitive Properties : научное издание
статья из журнала

Дополнительные ссылки: eLibrary
База данных: Каталог библиотеки СФУ
Библиографическое описание: New Azo Derivatives of Ethanol Lignin: Synthesis, Structure, and Photosensitive Properties : научное издание / Valentina S. Borovkova [et al.]. - Текст : непосредственный // Materials. - 2023. - Т.16, №4. - P. 1525. - ISSN 1996-1944, DOI 10.3390/ma16041525.
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 chromatography. 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.
Год издания: 2023
Авторы: Borovkova Valentina S. , Malyar Yuriy N. , Vasilieva Natalia Yu. , Skripnikov Andrey M. , Ionin Vladislav A. , Sychev Valentin V. , Golubkov Viktor A. , Taran Oxana P.
Издательство: Basel
Источник: Materials
Выпуск: Т.16, №4
Номера страниц: 1525
Держатель оригинала документа: Institute of Chemistry and Chemical Technology, Krasnoyarsk Science Center, Siberian Branch, Russian Academy of Sciences, School of Non-Ferrous Metals and Materials Science, Siberian Federal University
Количество экземпляров:
Твёрдая копия издания отсутствует в фонде библиотеки

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