Commentary on the alleged “irregularities” in APT spectra of imidazolium-based ionic liquids
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Within the past several years, ionic liquids (ILs) have attracted much interest in cellulose chemistry as dissolution (Zhu et al. 2006; Swatloski et al. 2002) and derivatization media (Wu et al. 2004; Barthel and Heinze 2006; Heinze et al. 2005), and research to use ILs for high-quality cellulosic fiber production is going on (Sun et al. 2008; Hermanutz et al. 2006). It has been realized that the integrity of the cellulose chain during dissolution and derivatization in ILs is largely dependent on the purity of these solvents and of the absence of IL-derived byproducts.
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