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Use of Microwave Heating in the Synthesis of Novel Polysaccharide Derivatives.
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SYSNO ASEP 0472894 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Use of Microwave Heating in the Synthesis of Novel Polysaccharide Derivatives. Author(s) Taubner, T. (CZ)
Synytsia, A. (CZ)
Sobek, Jiří (UCHP-M) RID, ORCID, SAI
Kortanková, V. (CZ)
Čopíková, J. (CZ)Source Title Proceedings of the 11th International Conference on Polysaccharides-Glycoscience. - Prague : Czech Chemical Society, 2015 / Řápková R. ; Čopíková J. - ISSN 2336-6796 - ISBN 978-80-86238-85-2 Pages s. 183-186 Number of pages 4 s. Publication form Online - E Action International Conference on Polysaccharides-Glycoscience /11./ Event date 07.10.2015 - 09.10.2015 VEvent location Prague Country CZ - Czech Republic Event type EUR Language eng - English Country CZ - Czech Republic Keywords amidated derivatives ; microwave ; polysaccharides Subject RIV CI - Industrial Chemistry, Chemical Engineering Institutional support UCHP-M - RVO:67985858 UT WOS 000371646000044 Annotation Microwave-assisted modification of polysaccharides is a relatively new method. Microwave heating is used for improving of extraction, hydrolytic and synthetic procedures. Modification of polysaccharides with the microwave irradiation is effective, fast and economic. The aim of this study was to apply the microwave irradiation in synthesis of carboxymethylcellulose (CMC) derivatives. This polysaccharide and its methyl ester reacted with n-butylamine yielding N-butylamide. The reactions were subsequently monitored by FUR and organic elemental analysis of the products. Degree of substitution (DS) and reaction yields were calculated based on nitrogen and carbon contents. The optimal reaction conditions were found to prepare product with the highest DS. Amino-de-alkoxylation of CMC methyl ester was significantly more effective than direct microwave assisted amidation of CMC, and microwave assisted significantly improved amino-de-alkoxylation. Workplace Institute of Chemical Process Fundamentals Contact Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Year of Publishing 2017 Electronic address http://hdl.handle.net/11104/0270103
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