Synthesis and Characterization of Polyethylene Glycol Dinitrates

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F11%3A39892642" target="_blank" >RIV/00216275:25310/11:39892642 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Synthesis and Characterization of Polyethylene Glycol Dinitrates

Popis výsledku v původním jazyce

Polyethylene glycol dinitrates (PEGN) with molecular weights between 400 and 20 000 g.mol-1 were prepared from polyethylene glycols by esterification with nitric acid/sulfuric acid in dichloromethane. The products were characterized by gel permeation chromatography. The yield of PEGN increases with increasing reaction temperature (0 - 40°C) however large liberation of nitrogen oxides was observed at 40 °C. No influence of reaction temperature (0 - 40°C) on the cleavage of the polyethylene glycol chain during esterification was observed. The dependence of melting point on the molecular weight of PEGN was determined. Polyethylene glycol dinitrates with molecular weights Mn above 454 are not sensitive to impact. Heat of combustion of PEGN increases with increasing molecular weight. All samples tested decompose in a similar way during thermal exposition.

Název v anglickém jazyce

Synthesis and Characterization of Polyethylene Glycol Dinitrates

Popis výsledku anglicky

Polyethylene glycol dinitrates (PEGN) with molecular weights between 400 and 20 000 g.mol-1 were prepared from polyethylene glycols by esterification with nitric acid/sulfuric acid in dichloromethane. The products were characterized by gel permeation chromatography. The yield of PEGN increases with increasing reaction temperature (0 - 40°C) however large liberation of nitrogen oxides was observed at 40 °C. No influence of reaction temperature (0 - 40°C) on the cleavage of the polyethylene glycol chain during esterification was observed. The dependence of melting point on the molecular weight of PEGN was determined. Polyethylene glycol dinitrates with molecular weights Mn above 454 are not sensitive to impact. Heat of combustion of PEGN increases with increasing molecular weight. All samples tested decompose in a similar way during thermal exposition.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CC - Organická chemie

OECD FORD obor

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Projekt

<a href="/cs/project/FT-TA2%2F027" target="_blank" >FT-TA2/027: *Výzkum nových materiálů pro použití v propelentech.</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2011

Kód důvěrnosti údajů

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

Název periodika

Central European Journal of Energetic Materials

ISSN

1733-7178

e-ISSN

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Svazek periodika

8

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

PL - Polská republika

Počet stran výsledku

11

Strana od-do

145-155

Kód UT WoS článku

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EID výsledku v databázi Scopus

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