Use of Microwave Heating in the Synthesis of Novel Polysaccharide Derivatives.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F15%3A00472894" target="_blank" >RIV/67985858:_____/15:00472894 - isvavai.cz</a>

Výsledek na webu

<a href="http://hdl.handle.net/11104/0270103" target="_blank" >http://hdl.handle.net/11104/0270103</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Use of Microwave Heating in the Synthesis of Novel Polysaccharide Derivatives.

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Use of Microwave Heating in the Synthesis of Novel Polysaccharide Derivatives.

Popis výsledku anglicky

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.

Druh

D - Stať ve sborníku

CEP obor

CI - Průmyslová chemie a chemické inženýrství

OECD FORD obor

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Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of the 11th International Conference on Polysaccharides-Glycoscience

ISBN

978-80-86238-85-2

ISSN

2336-6796

e-ISSN

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Počet stran výsledku

4

Strana od-do

183-186

Název nakladatele

Czech Chemical Society

Místo vydání

Prague

Místo konání akce

Prague

Datum konání akce

7. 10. 2015

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

000371646000044