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- Title
The changes of crystalline structure of cellulose during dissolution in 1-butyl-3-methylimidazolium chloride.
- Authors
Jiang, Guansen; Huang, Weifeng; Wang, Baochun; Zhang, Yumei; Wang, Huaping
- Abstract
The morphology and crystalline structure changes of cellulose during dissolution in 1-butyl-3-methylimidazolium chloride [(BMIM)Cl] were investigated by optical microscopy and synchrotron radiation wide-angle X-ray diffraction (WAXD). Neither swelling nor dissolution of cellulose was observed under the melting point of [BMIM]Cl. While the temperature was elevated to 70 °C, the swelling phenomenon of cellulose happened with the interplanar spacing of ( $$ 1\bar{1}0 $$) and (020) planes increased slightly. With the temperature further going up to 80 °C, cellulose was dissolved gradually with the crystallinity ( W) and crystalline index ( CrI) of cellulose decreased rapidly, which indicated the crystalline structure of cellulose was destroyed completely and transformed into amorphous structure.
- Subjects
MORPHOLOGY; CRYSTAL structure; CELLULOSE; DISSOLUTION (Chemistry); MICROSCOPY; SYNCHROTRON radiation
- Publication
Cellulose, 2012, Vol 19, Issue 3, p679
- ISSN
0969-0239
- Publication type
Article
- DOI
10.1007/s10570-012-9689-1