离子液体
纤维素
结晶度
氯化物
化学工程
材料科学
溶剂
离子键合
化学
高分子化学
离子
复合材料
有机化学
工程类
催化作用
作者
Muhammad Abdul Haq,Yasuhiro Habu,Kazuya Yamamoto,Akihiko Takada,Jun‐ichi Kadokawa
标识
DOI:10.1016/j.carbpol.2019.115058
摘要
It is still challenging to melt-process cellulose. In this paper, we proposed a method for the formation of thermally processable flexible cellulose films via gelation from its solution in ionic liquid (1-butyl-3-methylimidazolium chloride; BMIMCl). Cotton, as a source of cellulose, was dissolved (5 wt%) in BMIMCl and subsequently placed in different amounts of water. The obtained ion gels were dried at 60 °C for 24 h; during drying process, water was removed while BMIMCl was retained. It was found that the amount of retained BMIMCl had a critical role in determining the mechanical properties of the films. It was suspected that the processing conditions altered the degree of crystallinity of cellulose in the films as evidenced by X-ray diffraction measurement. The ionic liquid, i.e., BMIMCl induced the plasticity into the films, so that thermal processability to different shapes became possible.
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