100894-64-2Relevant academic research and scientific papers
Synthesis and hypergolic activity evaluation of some new ammonium-imidazolium based ionic liquids
Fareghi-Alamdari, Reza,Ghorbani-Zamani, Faezeh,Zekri, Negar
, p. 26386 - 26391 (2016)
In this study, a new class of dicyanamide-based ionic liquids containing mono and dicationic counterparts was synthesized and characterized. Results demonstrate that the physical properties of these salts, including thermal stability, melting point, density and viscosity, are highly dependent on the structure of cation and type of anion. It was observed that the thermal stability of dicationic ionic liquids is higher for the monocationic ones. Furthermore, droplet tests were used to investigate the hypergolic properties of these ionic liquids. All of the synthesized compounds showed hypergolic activity upon contact with white fuming nitric acid, suggesting that some may have potential for application as bipropellants or energetic additives.
Imidazole ionic liquid and synthesis method and application thereof
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Paragraph 0026-0027; 0044; 0047, (2019/07/04)
The invention provides a synthesis method of imidazole ionic liquid 1-allyl-3-vinylimidazole acetate. The synthesis method comprises the following steps: carrying out one-step reaction on N-vinylimidazole and allyl chloride to obtain an ionic liquid intermediate 1-allyl-3-vinylimidazole chloride salt at first, and then carrying out anion exchange on the intermediate and potassium acetate to obtain1-allyl-3-vinylimidazole acetate ([AVIM] [OAc]). The ionic liquid 1-allyl-3-vinyl imidazole acetate can be used as a solvent and can be used for dissolving biological macromolecules such as starch and cellulose.
Hydrophobic 1-allyl-3-alkylimidazolium dicyanamide ionic liquids with low densities
Zhang, Qinghua,Ma, Xiangyuan,Liu, Shimin,Yang, Benqun,Lu, Liujin,He, Yude,Deng, Youquan
supporting information; experimental part, p. 6864 - 6868 (2011/11/14)
Nine 1-allyl-3-alkylimidazolium ([ACnIm]) or 1-vinyl-3-alkylimidazolium ([VCnIm]) dicyanamides (DCA) were prepared and characterized, and their physicochemical properties were studied in detail. Except for [AVIm]DCA and [AC4Im]DCA, the other dicyanamides with hexyl or longer alkyl chains on the cation exhibited the characteristic of hydrophobicity. Among them, [AC8Im]DCA and [AC10Im]DCA were found to possess similar densities to water, i.e. 1.007 g cm-3 and 0.988 g cm-3 at 25 °C, respectively. Interestingly, a reversible phase reversion of a [AC8Im]DCA/H2O mixture was observed as the temperature varied. These environmentally-friendly liquid materials have potential applications as precursors for syntheses of conducting polymeric materials.
