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Facile production of cellulosic organic solutions and organogels from ionic liquid media
Colloid and Polymer Science ( IF 2.4 ) Pub Date : 2020-06-16 , DOI: 10.1007/s00396-020-04685-6
Jun-ichi Kadokawa , Natsuki Ohyama , Satoshi Idenoue , Kazuya Yamamoto

In this study, we investigate what types of cellulosic materials are formed by soaking the cellulose/ionic liquid (1-butyl-3-methylimidazolium chloride, BMIMCl) solutions in various organic liquids. When the 5-wt% cellulose/BMIMCl solutions were soaked in organic liquids with high and moderate polarities (relative permittivities), the corresponding cellulosic solutions and gels were produced, respectively. On the other hand, soaking the cellulose/BMIMCl solutions in lower polar liquids resulted in aggregation of cellulose in the mixtures. As the gels with high boiling point media were stable, they were characterized by viscoelastic and compression measurements. Contents of organic media and BMIMCl in the gels were changed depending on the polarities, which affected the mechanical properties under compression mode. Furthermore, processes for production of the solution, gel, and aggregate were proposed. Graphical abstract Facile production of cellulosic organic solutions and organogels from ionic liquid media

中文翻译:

从离子液体介质中轻松生产纤维素有机溶液和有机凝胶

在这项研究中,我们研究了通过将纤维素/离子液体(1-丁基-3-甲基咪唑氯化物,BMIMCl)溶液浸泡在各种有机液体中而形成的纤维素材料类型。当将 5-wt% 纤维素/BMIMCl 溶液浸泡在具有高和中等极性(相对介电常数)的有机液体中时,分别产生相应的纤维素溶液和凝胶。另一方面,将纤维素/BMIMCl 溶液浸泡在较低极性的液体中会导致混合物中纤维素的聚集。由于具有高沸点介质的凝胶稳定,因此通过粘弹性和压缩测量对其进行表征。凝胶中有机介质和BMIMCl的含量根据极性而变化,这影响了压缩模式下的机械性能。此外,提出了生产溶液、凝胶和聚集体的方法。从离子液体介质中轻松生产纤维素有机溶液和有机凝胶的图形摘要
更新日期:2020-06-16
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