Effect of the cation structure on the properties of homobaric imidazolium ionic liquids

Abstract

In this work we investigate the structure – property relationship in a series of alkylimidazolium ionic liquids with almost identical molecular weight. Using a combination of theoretical calculations and experimental...

Physical properties and nanostructuring of long-chained homobaric imidazolium ionic liquids

“…Methylation of the C 2 -position of the ring gives results similar to those reported in previous publications, 16 with the methylation increasing the decomposition temperature of the compound. However, unlike the non-methylated analogues, the distribution of carbons on the alkyl chain does affect the decomposition profile of these compounds, with [C 7 C 4 C 1 im][NTf 2 ] having a lower decomposition temperature compared to [C 10 C 1 C 1 im][NTf 2 ].…”

“…In previous work on the physical properties of short-chained imidazolium ionic liquids it was shown that the density was not affected neither when going from a linear to a branched chain, nor when going to a more symmetric system. 16 Both observations are still true for long-chained systems presented in this work. It seems that density is not sensitive to symmetry variations and is only affected by the total number of carbons in the chain.…”

“…The ionic liquids studied in this work were prepared based on the procedures described in detail in previous works. 16,17 Detailed descriptions of the synthetic procedures can be found in the ESI †…”

“…The ionic liquids studied in this work were prepared based on the procedures described in detail in previous works. 16,17 Detailed descriptions of the synthetic procedures can be found in the ESI. † All ionic liquids were dried for several days in vacuo before their use and the water content, as tested by coulometric Karl Fischer titration, was always below 100 ppm.…”

Recent Research Progress of Ionic Liquid Dissolving Silks for Biomedicine and Tissue Engineering Applications

“…ILs are generally composed of large volumes of organic cations supplying positive charge and organic or inorganic anions providing negative charge [ 35 ]. Compared with traditional organic solvents, ILs possess many attractive and unique properties, such as no significant vapor pressure, wide liquid temperature, good conductivity, thermal and chemical stability, and good solubility, as well as designability of structure and characteristics for various materials [ 36 , 37 , 38 , 39 ]. The scientific community is increasingly focusing on the advantages, for instance, the high solubility and stability of ILs for silk regeneration, and its composite preparation with other materials is an effective new strategy to obtain various adjustable properties of biomaterials ( Figure 1 ) [ 40 ].…”