| Novel Ionic Liquid Crystals Based on N-Alkylcaprolactam as Cations | |
| Department | 绿色化学与催化研发中心 |
Yang J(杨静); Zhang QH(张庆华) ; Zhu LY(朱来英); Zhang SG(张世国); Li J(李健); Zhang XP(张晓萍); Deng YQ(邓友全)
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| 2007 | |
| Source Publication | Chem. Mater.
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| ISSN | 0897-4756 |
| Volume | 19Pages:2544-2550 |
| Abstract | A novel series of ionic liquids (ILs) based on N-alkyl- -caprolactam as cations [Cn-CP]+ (Cn ) alkyl with different numbers of C atoms; n ) 6, 8, 10, 12, 16, or 18) containing toluene-p-sulfonate [TS]- and methanesulfonate [MS]- as anions have been synthesized via a one-step atom-economic reaction. Characterizations of these ILs by differential scanning calorimetry, polarizing optical microscopy, variabletemperature powder X-ray diffraction, etc., were conducted. The results showed that the caprolactambased ILs (n≥8) were enantiotropic thermotropic liquid crystals, except for C18-CPMS (monotropic), and displayed smectic A phases. Some properties, such as higher transition enthalpies (e.g., ΔH=83.1 kJ/mol for C18-CPTS), higher specific heat capacities (e.g., Cp=2.85 J/g·K for C16-CPTS) and higher heat storage densities (e.g., sensible heat storage density Es=262.8l MJ/m3 for C16-CPTS; latent heat storage density El=146.0 MJ/m3 for C18-CPTS), were observed. Fluorescence measurements showed that the homologous Cn-CPTS ILs exhibited strong fluorescence behavior. Finally, the test of acute toxicity toward rats showed that these new ILs were less toxic than the popular [BMIm]BF4 IL. |
| Subject Area | 物理化学 |
| Funding Organization | the National Natural Science Foundation of China (20533080;20225309;60377039) |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 绿色催化课题 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/3649 |
| Collection | 绿色化学研究发展中心 |
| Corresponding Author | Deng YQ(邓友全) |
| Recommended Citation GB/T 7714 | Yang J,Zhang QH,Zhu LY,et al. Novel Ionic Liquid Crystals Based on N-Alkylcaprolactam as Cations[J]. Chem. Mater.,2007,19:2544-2550. |
| APA | 杨静.,张庆华.,朱来英.,张世国.,李健.,...&邓友全.(2007).Novel Ionic Liquid Crystals Based on N-Alkylcaprolactam as Cations.Chem. Mater.,19,2544-2550. |
| MLA | 杨静,et al."Novel Ionic Liquid Crystals Based on N-Alkylcaprolactam as Cations".Chem. Mater. 19(2007):2544-2550. |
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| 杨静CM.pdf（283KB） | 开放获取 | License | View Application Full Text | |||
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