共查询到19条相似文献,搜索用时 30 毫秒
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绿色溶剂——离子液体及其应用 总被引:9,自引:0,他引:9
离子液体作为“绿色的、可设计性”溶剂越来越受到关注。本文介绍了离子液体种类、特性和制备,综述了离子液体在分离过程、电化学、化学反应及材料领域中的应用,展望了离子液体的应用前景。 相似文献
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During the past years a growing number of scientists and engineers have investigated ionic liquids because of their outstanding advantages in several areas. Their unique physical properties and specific chemical behavior make these liquids very interesting for new and innovative applications. For commercial implementation ionic liquids have to meet a number of requirements. For use in high pressure applications they should have a low compressibility, an adjustable gas solubility and a superior lubricating ability. A screening of the relevant parameters was conducted in several experimental setups built for these purposes. Most of these parameters were also examined under long term conditions with regard to real process conditions and safety guarantee in possible high pressure applications. A major application is the compression of oxygen using ionic liquid as operating fluid. Besides, there are many more applications where the superior chemical and physical properties of ionic liquids are of high potential benefit. 相似文献
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离子液体的应用研究进展 总被引:17,自引:0,他引:17
离子液体是在室温或室温附近下呈液态、具有离子特性的新型溶剂,具有超低蒸气压,也称为绿色溶剂。介绍了离子液体的历史发展、种类,论述了离子液体在化学反应、分离过程、电化学、高分子离子液体及其他领域中的应用。 相似文献
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Room temperature ionic liquids are salts that are liquids at ambient temperature. They are excellent solvents for a broad
range of polar organic compounds and they show partial miscibility with aromatic hydrocarbons. Typical room temperature ionic
liquids have a stable liquid range of over 300 K and have a very low vapor pressure at room temperature. Ionic liquids that
are not hydrolyzed show a wide range of solubility in water. These unique properties have suggested that they might be useful
as environmentally benign solvents that could replace volatile organic compounds (VOC). By varying the length and branching
of the alkane chains of the cationic core and the anionic precursor, the solvent properties of ionic liquids should be able
to be tailored to meet the requirements of specific applications to create an almost infinitely set of “designer solvents”.
A review of recent applications of ionic liquids is presented along with some results of measurements of liquid-liquid equilibria
and partition coefficients with alcohols. The results are compared with predictions based on quantum mechanic calculations. 相似文献
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近年来,使用离子液体替代传统溶剂参与调节结晶过程中的各种相互作用以获得新颖的晶体结构是药物晶体工程的研究前沿。研究人员在离子液体体系中得到了使用传统溶剂无法制得的药物晶型或晶习并进行了相应机理的初步探索。针对离子液体在药物晶体工程中的应用,本文从离子液体的组成和性质及其在药物增溶、药物晶型及晶习的调控和药物共晶及盐的制备几方面展开,首次综述了相关研究成果并基于红外光谱、分子动力学模拟等手段从相互作用的角度对机理进行分析,其中氢键和范德华力相互作用起到了重要影响。最后针对该领域现存的问题如离子液体的选择处于盲筛阶段,相应机理研究缺乏和应用范围不广泛,指出建立系统的离子液体选择标准和深入研究机理是未来的主要研究方向。 相似文献
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Ayesha Kausar 《Polymer-Plastics Technology and Engineering》2017,56(17):1823-1838
Polymeric ionic liquids or poly(ionic liquid)s combine unique properties of ionic liquids with macromolecular characteristics. One of the spotlights of review was to identify potential areas of poly(ionic liquid)s. Due to unique combination of polymer and counterions, poly(ionic liquid)s possess tunable properties to be employed in range of advanced applications. Poly(ionic liquid)s composites have claimed relevance in energy storage/production and catalysis. In biosensors, poly(ionic liquid)s were employed to fabricate enzyme electrodes. Moreover, stimuli-responsive copolymers were used to form multi-responsive poly(ionic liquid)s. Separation membranes have been reported for gas separation/storage/transport. A significant use of poly(ionic liquid)s was found as solid-state electrolyte. In fuel cell, poly(ionic liquid)s-based electrolyte membranes were employed. 相似文献