新型硅氧烷离子液体的合成与酸性气体捕捉

Synthesis of Novel Siloxane Ionic Liquids and Acid Gas Capture

近年来离子液体的设计制备得到了迅速发展,在电化学、分离科学、有机合成等诸多领域得到了广泛的应用。该文设计采用过渡金属铂催化剂,经过一系列步骤制备得到骨架型硅氧烷中心核的离子液体前驱物,然后与N-甲基咪唑或2-乙基咪唑反应形成新型硅氧烷中心核咪唑类离子液体,研究不同反应时间以及温度对合成的影响,并通过置换反应得到了一系列新型离子液体。并用红外光谱仪、紫外分光光度计等对新型离子液体结构进行表征,并利用其中2种离子液体对酸性气体进行吸收性能探讨。

In recent years, the design and preparation of ionic liquids have developed rapidly, and have been widely used in many fields such as electrochemistry, separation science, organic synthesis and so on. This paper adopts the design of transition metal platinum catalyst, through a series of steps of preparing ionic liquid precursor of silicone core skeleton type, then reacted with N methyl imidazole or 2 ethyl imidazole to form new siloxane core of imidazolium ionic liquids. Effect of different reaction time and temperature on the synthesis were studied, and a series of new ionic liquids were obtained by replacement reaction. The structure of the new ionic liquid was characterized by infrared spectrometer and ultraviolet spectrophotometer, and the absorption properties of acid gas by two kinds of ionic liquids were discussed.