共查询到19条相似文献,搜索用时 78 毫秒
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咪唑类离子液体性质、制备及应用的研究进展 总被引:1,自引:0,他引:1
简介了离子液体的种类、性质,重点阐述了咪唑类离子液体的制备及其应用,通过对离子液体进行阴阳离子的设计得到功能化离子液体,主要将其作为绿色溶剂应用于有机合成反应、催化反应和萃取分离过程。 相似文献
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绿色溶剂——离子液体的制备与应用 总被引:71,自引:3,他引:71
合成的离子液体已达一百多种,离子液体作为溶剂可用于分离过程,化学反应,特别是催化反应以及电化学等方面,并已取得许多良好的实验结果,离子液体易于循环利用从而减少对环境的污染,被称为绿色溶剂。 相似文献
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离子液体固载化及其应用 总被引:12,自引:0,他引:12
离子液体被认为是一类可取代传统有机溶剂的环境友好新型溶剂。离子液体的功能化可使其具有更广阔的应用空间;将功能化离子液体进行固载化,可以把离子液体和固相载体材料的优点结合在一起,应用于反应与催化时,从而更有利于产物和原料的分离、催化剂的循环使用,并且更经济。对近年来离子液体固载化的方法和应用进行了综述。 相似文献
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以N-甲基咪唑和氯代正丁烷为原料在微波控制下合成了离子液体1-丁基-3-甲基咪唑氯盐([BMIm]Cl),对产物的结构作了红外光谱、核磁共振等分析。用该离子液体溶解纤维素,溶解度良好,并对溶解前后纤维素的结构变化、溶解机理进行了研究。 相似文献
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Qingbin Liu Fred van Rantwijk Roger A Sheldon 《Journal of chemical technology and biotechnology (Oxford, Oxfordshire : 1986)》2006,81(3):401-405
Ionic liquids were synthesised that consisted of two methylimidazolium rings joined by a spacer 1–12 carbon atoms in length. The bis(triflic)imides with spacer ≤C4 were solids; the others were liquid at room temperature. The polarity of the dication liquids and their performance in the extraction of phenol from water were compared with those of similar monocationic liquids. Copyright © 2005 Society of Chemical Industry 相似文献
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Ewa Andrzejewska 《Polymer International》2017,66(3):366-381
Ionic liquids (ILs) are low‐melting organic salts often liquid at room temperature, whose unique properties are the reason of increasing interest for their applications as solvents, reaction media and functional additives. The exceptional properties of ILs have proved to be particularly useful in polymer science giving the potential to produce polymeric materials with improved properties or to immobilize ILs in polymer matrices while keeping their special characteristics. One of the possibilities is polymerization in ILs which can also affect positively polymerization reactions. An especially attractive technique is photopolymerization due to the ease of process control, short reaction time and ambient working temperature. This review gives a literature survey of developments in photopolymerization processes carried out in ILs as well as applications of these processes. It covers both the photopolymerization in ILs as well as photopolymerization of IL monomers. The first part presents a short overview of physicochemical and photochemical properties of ILs; it includes also photochemical reactions and photoinitiation of polymerization in ILs. The second part covers both the basic research (kinetics of photopolymerization including polymerization rate coefficients and polymerization of IL monomers) as well as applications of UV‐induced polymerization in ILs. © 2016 Society of Chemical Industry 相似文献