Библиографическое описание:Sulfation of Birch Cellulose with Sulfamic Acid on a Graphite-Like Catalyst : доклад, тезисы доклада / A. A. Kazachenko [et al.]. - [S. l. : s. n.], 2023. - Текст : непосредственный // Fundamental and Applied Scientific Research in the Development of Agriculture in the Far East (AFE-2022) : Agricultural Cyber-Physical Systems / Fundamental and Applied Scientific Research in the Development of Agriculture in the Far East (AFE-2022) (2022 ; 29.07 - 29.07 ; Ussuriysk). - Switzerland, 2023. - 706-2. - P. 606-614. - This study was carried out within the state assignment no. 0287–2021-0017 for the Institute of Chemistry and Chemical Technology, Siberian Branch of the Russian Academy of Sciences, on the equipment of the Krasnoyarsk Regional Center for Collective Use, Krasnoyarsk Scientific Center, Siberian Branch of the Russian Academy of Sciences. The authors thank Evgeny Elsufiev and G.N. Bondarenko for help in obtaining FTIR and XRD data. - ISBN 9783031369599, DOI 10.1007/978-3-031-36960-5_69.
Аннотация:Cellulose is one of the most common polysaccharides. The chemical modification of cellulose with sulfate groups opens up new facets of its use as an anticoagulant and hypolipedemic substance. The biological activity of sulfated polysaccharides also depends on the method of preparation and their structure. In this paper, we propose a new method of sulphation of cellulose - sulfamic acid in the presence of an oxidized graphite-like catalyst. The obtaining cellulose sulfates were characterized by elemental analysis, FTIR spectroscopy, X-ray diffraction and gel permeation chromatography. Embedding of the sulfate group is proven by FTIR, the appearance of absorption bands in cellulose sulfate at 1249 cm−1 and 808 cm−1, which correspond to the vibrations of the sulfate group. According to gel permeation chromatography data, the molecular weight distribution profile of the MCC sulfate sample consists of two main narrow peaks located in the molecular weight region up to ~ 5000 g/mol, and a broader peak in the high molecular weight region.
Мероприятие:Fundamental and Applied Scientific Research in the Development of Agriculture in the Far East (AFE-2022) (Ussuriysk, 2022 ; 29.07 - 29.07)
Номера страниц:606-614
Держатель оригинала документа:Krasnoyarsk State Medical University, Laboratory of Quantum and Statistical Physics (LR18ES18), Faculty of Sciences, University of Monastir, Siberian Branch, Krasnoyarsk Scientific Center, Russian Academy of Sciences, Siberian Federal University
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