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Preparations, properties, and formation mechanism of novel cellulose hydrogel membrane based on ionic liquid

机译:基于离子液体的新型纤维素水凝胶膜的制备,性质和形成机制

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Cellulose hydrogel membranes were successfully produced by casting the cellulose/1-butyl-3-methylimidazolium chloride (BmimCl) solution into assembling molds, and then coagulated in water. The morphological features and mechanical properties of the prepared hydrogel membranes were characterized by a series of techniques including X-ray diffraction measurements, scanning electron microscopy measurements, UV-visible light absorption spectrum, and tensile testing. The formation mechanism and the effects of different pre-gelation temperature, pre-gelation time, and coagulation batch temperature on the morphology and property of prepared cellulose hydrogel membranes were explored. The result shows that the hydrogel membrane of cellulose with excellent performance can be prepared adopting novel ionic liquid (BmimCl) as solvent through suitable process; the prepared hydrogel membranes present good mechanical properties and excellent transparency. In addition, the model of the hydrogel formation is established. It is believed that this is a promising material in the application of biomedical engineering and medical material. (c) 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 45488.
机译:通过将纤维素/ 1-丁基-3-甲基咪唑氯化铵(BmimCl)溶液浇铸到组装模具中,然后在水中凝结,成功地制备了纤维素水凝胶膜。制备的水凝胶膜的形态学特征和机械性能通过包括X射线衍射测量,扫描电子显微镜测量,UV可见光吸收光谱和拉伸试验的一系列技术来表征。探讨了不同预凝胶温度,凝胶化时间和凝血批量温度对制备纤维素水凝胶膜的形态和性能的形成机制和效果。结果表明,通过合适的工艺采用新的离子液体(Bmimcl),可以制备具有优异性能的纤维素膜作为溶剂。制备的水凝胶膜具有良好的机械性能和优异的透明度。此外,建立了水凝胶形成的模型。据信,这是在生物医学工程和医疗材料中应用的有希望的材料。 (c)2017 Wiley期刊,Inc.J.Phill。聚合物。 SCI。 2018,135,45488。

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