Choline amino acid are known as less toxic and most biocompatible ionic liquids as well as they are known as green solvents. Room temperature ionic liquids mean they are liquid in RT. It is really very much important to have the property as room tm ILs for further thinking.......
Dear Sir. Concerning your issue about the choline amino acid such as [Choline][Asp] or [Choline][Glu] as ionic liquid at room temperature.A series of novel green lubricants with dissolved lignin in [choline][amino acid] ([CH][AA]) ionic liquids (ILs) have been synthesized in this work. The effect of lignin on the thermal and tribological properties of the lignin/[CH][AA] lubricants was systematically investigated by means of thermogravimetric analysis, differential scanning calorimetry, and a friction and wear tester. The lignin in [CH][AA] has been demonstrated to be an effective additive to improve thermal stability, reduce the wear rates and stabilize the friction coefficients of lignin/[CH][AA] lubricants. Density function theory calculations on the electronic structure of [CH][AA] ILs reveal the atomic natural charge of ILs and their hydrogen bonding capability with lignin. Moreover, these green lubricants show excellent anti-corrosive properties against commercial aluminum and iron boards. The strong physical adsorption of [CH][AA] ILs onto the steel surface and the reciprocal hydrogen bonding between [CH][AA] ILs and lignin synergistically contribute to the enhanced lubrication film strength and thus the tribological properties of these new lubricants. This work provides a new perspective on utilizing complete bio-products in advanced tribological lubrication systems. In addition, this will open a new application venue for lignin to improve product value in lignocellulosic biomass utilization. . I think the following below links and the attached file may help you in your analysis:
http://www.mhhe.com/biosci/genbio/raven6b/graphics/raven06b/other/raven06b_03.pdf
http://pubs.rsc.org/en/content/articlepdf/2015/ra/c5ra11093a
https://openaccess.leidenuniv.nl/bitstream/handle/1887/21787/02.pdf?sequence=9
Thanks
Dear sir,
Thank you for these supportive information. All of these papers are so helpful for and it will help me a lot on my research but I am not fully satisfied.
1.Do you know about the physical state of [Cho-Glu] and [Cho-Asp] ?
2.Is these ionic liquids are liquid or solid in room temperature?
Thanks and waiting for your response.
- Badges
- Science topic
- Similar topics
- Phytochemistry
- Extracts