Preparation of Cellulose Nanocrystals Using an Ionic Liquid

被引：157
|
作者：
Man, Zakaria [1 ]
Muhammad, Nawshad [1 ]
Sarwono, Ariyanti [1 ]
Bustam, Mohamad Azmi [1 ]
Kumar, M. Vignesh [1 ]
Rafiq, Sikander [1 ]
机构：
[1] Univ Teknol PETRONAS, PETRONAS Ion Liquid Ctr, Dept Chem Engn, Tronoh, Perak, Malaysia
来源：
JOURNAL OF POLYMERS AND THE ENVIRONMENT | 2011年 / 19卷 / 03期
关键词：
Microcrystalline cellulose; Ionic liquid; Cellulose nanocrystals; Crystallinity; Characterization; ACID-HYDROLYSIS; BEHAVIOR; WHISKERS; NANOCOMPOSITES;
D O I：
10.1007/s10924-011-0323-3
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
In this paper cellulose nanocrystals were prepared by treating microcrystalline cellulose with 1-butyl-3-methylimidazolium hydrogen sulphate ionic liquid. Cellulose nanocrystals, after separation from ionic liquid, were characterized by X-ray diffraction (XRD), Fourier transform infrared (FTIR), Field emission scanning electron microscopy (FESEM) Transmission Electron Microscope (TEM) and Thermogravimetric analysis. XRD results showed no changes in type of cellulose after the treatment with ionic liquid, however, high crystallinity index was observed in the ionic liquid treated sample. Cellulose nanocrystals, having length around 50-300 nm and diameter around 14-22 nm were observed in the ionic liquid treated sample under FESEM and TEM, and similar patterns of peaks as that of microcrystalline cellulose were observed for cellulose nanocrystals in the FTIR spectra. The thermal stability of the cellulose nanocrystals was measured low as compare to microcrystalline cellulose.
引用
收藏
页码：726 / 731
页数：6
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