Hydrogen Bond Acceptor Properties of Ionic Liquids and Their Effect on Cellulose Solubility
Hydrogen Bond Acceptor Properties of Ionic Liquids and Their Effect on Cellulose Solubility
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离子液体的氢键受体性质及其对纤维素溶解度的影响
DOI：
10.1021/bk-2010-1033.ch006
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发表时间：
2010
期刊：
影响因子：
--
通讯作者：
A. Stark
中科院分区：
文献类型：
--
作者：
M. Sellin;B. Ondruschka;A. Stark
一些离子液体可以溶解纤维素的事实是众所周知的，但是关于离子液体的结构方面对纤维素溶解的影响的系统数据很少。以乙醇为模型化合物，对大量离子液体进行 1 H NMR 谱分析。获得的数据与阴离子依赖性氢键受体特性（由 Spange 和 Lungwitz 确定为 β 值）相关，可用于区分纤维素溶解性和非溶解性离子液体。从纤维素在二元离子液体混合物中的溶解度，可以得出非溶解阴离子和阳离子两者的调节作用。
The fact that some ionic liquids can dissolve cellulose is well known, but little systematic data is available regarding the influence of structural aspects of the ionic liquid on the dissolution of cellulose. Using ethanol as model compound, 1 H NMR spectroscopy of a large number of ionic liquids was conducted. The data obtained correlates with the anion-dependent hydrogen bond acceptor properties (determined as β-values by Spange and Lungwitz), and can be used to distinguish between cellulose-dissolving and non-dissolving ionic liquids. From the cellulose solubility in binary ionic liquid mixtures, the modulating effect of both, the non-dissolving anion and the cation has been derived.