Počet záznamů: 1
Use of Microwave Heating in the Synthesis of Novel Polysaccharide Derivatives.
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SYSNO ASEP 0472894 Druh ASEP C - Konferenční příspěvek (mezinárodní konf.) Zařazení RIV D - Článek ve sborníku Název Use of Microwave Heating in the Synthesis of Novel Polysaccharide Derivatives. Tvůrce(i) Taubner, T. (CZ)
Synytsia, A. (CZ)
Sobek, Jiří (UCHP-M) RID, ORCID, SAI
Kortanková, V. (CZ)
Čopíková, J. (CZ)Zdroj.dok. 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 Rozsah stran s. 183-186 Poč.str. 4 s. Forma vydání Online - E Akce International Conference on Polysaccharides-Glycoscience /11./ Datum konání 07.10.2015 - 09.10.2015 Místo konání Prague Země CZ - Česká republika Typ akce EUR Jazyk dok. eng - angličtina Země vyd. CZ - Česká republika Klíč. slova amidated derivatives ; microwave ; polysaccharides Vědní obor RIV CI - Průmyslová chemie a chemické inženýrství Institucionální podpora UCHP-M - RVO:67985858 UT WOS 000371646000044 Anotace 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. Pracoviště Ústav chemických procesů Kontakt Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Rok sběru 2017 Elektronická adresa http://hdl.handle.net/11104/0270103
Počet záznamů: 1