Effect of Temperature on Li Electrodeposition Behavior in Room-Temperature Ionic Liquids Comprising Quaternary Ammonium Cation

2019 ◽  
Vol 166 (13) ◽  
pp. A2973-A2979 ◽  
Author(s):  
Hikaru Sano ◽  
Mitsunori Kitta ◽  
Masahiro Shikano ◽  
Hajime Matsumoto
Keyword(s):  
Ionic Liquids ◽  
Quaternary Ammonium ◽  
Room Temperature ◽  
Ammonium Cation ◽  
Effect Of Temperature ◽  
Room Temperature Ionic Liquids

scholarly journals Synthesis of Quaternary Ammonium Room-Temperature Ionic Liquids and their Application in the Dissolution of Cellulose

2019 ◽  
Vol 9 (9) ◽  
pp. 1750 ◽  
Author(s):  
Yao-Hsuan Tseng ◽  
Yu-Yin Lee ◽  
Shih-Hsun Chen
Keyword(s):  
Ionic Liquids ◽  
Quaternary Ammonium ◽  
Room Temperature ◽  
Room Temperature Ionic Liquids ◽  
Regenerated Cellulose ◽  
Exchange Reactions ◽  
Cellulose Films ◽  
Structural Regularity ◽  
Rapid Dissolution ◽  
Regenerated Cellulose Films

In this work, several kinds of quaternary ammonium-based room-temperature ionic liquids (QA RTILs) are synthesized by alkylation and ion-exchange reactions for the rapid dissolution of cellulose. The applications of cellulose materials have been limited due to their poor solubility in conventional organic solvents, because of a high degree of structural regularity and a large number of hydrogen bonds. The prepared ionic liquids were identified by nuclear magnetic resonance, elemental analysis, and liquid chromatography-mass spectrometry. The results indicated that N,N,N-triethylhexan-1-aminium acetate (N6222OAc), tetrahexylammonium acetate (N6666OAc), and N,N,N,N′,N′,N′-hexaethyldecane-1,10-diaminium acetate (C10(N222OAc)2) exhibited good cellulose-dissolution without any pretreatment. The regenerated cellulose films with a low degree of crystallization of the cellulose II phase were also prepared easily in this process using N6222OAc due to its polar and small cation. These QA RTILs can be used as non-derivatizing solvents for cellulose and can also be easily recycled because of their thermostable and nonvolatile properties.

scholarly journals Liquid Ordering Structure in Binary Room Temperature Ionic Liquids Based on Aliphatic Quaternary Ammonium Ions

2019 ◽  
Vol 16 (49) ◽  
pp. 69-77 ◽  
Author(s):  
Minoru Mizuhata ◽  
Takeshi Minowa ◽  
Masanori Maekawa ◽  
Shigehito Deki
Keyword(s):  
Ionic Liquids ◽  
Quaternary Ammonium ◽  
Room Temperature ◽  
Room Temperature Ionic Liquids ◽  
Ammonium Ions ◽  
Quaternary Ammonium Ions

Effect of Temperature on the Purity of Product in the Preparation of 1-Butyl-3-methylimidazolium-Based Ionic Liquids

2004 ◽  
Vol 59 (7) ◽  
pp. 763-770 ◽  
Author(s):  
Johanna Kärkkäinen ◽  
Janne Asikkala ◽  
Risto S. Laitinen ◽  
Marja K. Lajunen
Keyword(s):  
Mass Spectrometry ◽  
Ionic Liquids ◽  
Room Temperature ◽  
Effect Of Temperature ◽  
Room Temperature Ionic Liquids ◽  
X Ray ◽  
H Nmr ◽  
Microwave Assisted ◽  
Ionisation Mass Spectrometry ◽  
Ionisation Mass

The preparation of room-temperature ionic liquids 1-butyl-3-methylimidazolium chloride, hexafluorophosphate, and dicyanamide by microwave-assisted reaction in non-solvent and solvent conditions has been studied in this contribution. A special emphasis is put on the effect of the reaction temperature on the purity of ionic liquids that was monitored by electrospray ionisation mass spectrometry and 1H NMR. The X-ray structure of 1-butyl-3-methylimidazolium chloride is presented.

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