Thermal stability of choline based amino acid ionic liquids

被引：35
作者：
Bhattacharyya, Shubhankar [1 ]
Shah, Faiz Ullah [1 ]
机构：
[1] Lulea Univ Technol, Chem Interfaces, S-97187 Lulea, Sweden
来源：
JOURNAL OF MOLECULAR LIQUIDS | 2018年 / 266卷
关键词：
Amino acids; Ionic liquids; Choline; Thermal stability; THERMOGRAVIMETRIC ANALYSIS; CO2; ABSORPTION; DECOMPOSITION; CHEMISORPTION; MECHANISMS; SOLVENTS; INSIGHTS; CAPTURE; TGA; MS;
D O I：
10.1016/j.molliq.2018.06.096
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Thermal stability of different choline based amino acid ionic liquids were studied. Both short term as well as long term thermal studies were carried out. Long term thermal studies of all ILs were carried out by isothermal TGA and short term thermal studies were measured by temperature ramped TGA. Isothermal TGA were studied at two different temperatures 100 degrees C and 150 degrees C for 500 min. Whereas, short term thermal stability represents as T-2%, T-5% and T-10% which are the temperature at which 2%, 5% and 10% mass loss of ILs were observed. The effect of alkyl side chain on the cation, etherification of the cation as well structural variation of anion on the thermal stability of choline based ILs were investigated. It was observed that thermal characteristics of ILs towards temperature ramped TGA were different compared to isothermal TGA. (C) 2018 Elsevier B.V. All rights reserved.
引用
收藏
页码：597 / 602
页数：6
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