Abstract
Microcrystalline cellulose (MCC) was pretreated by using ionic liquids (ILs)-water mixtures solvent with solid acid catalysts. Different amount of water was considerate as the main variable. The peak shift of pretreated sample was determined by FT-IR related to the water content. The XRD was applied to characterize the change in MCC crystalline structure. Thermal decomposition technique was applied to investigate the thermal stability of pretreated MCC. The result indicated that three state of samples were occurred in pretreated MCC sample which was related the amount of water in ILs mixture system. XRD result suggested that the raw sample was distorted and transformed into a less ordered intermediate structure and the smaller crystallite size in lump state sample was obtained which could lead to lower thermal stability. This study revealed the physical chemicals properties, characteristic of molecular structures in MCC using ILs-water mixtures.
Highlights
Microcrystalline Cellulose (MCC), as a steadily renewable native resources, and its derivatives are of great importance
The solubility of MCC in [BMIM]Clwater mixture was used to understand the state of recovery MCC, the pretreated MCC was characterized via SEM analysis in order to evaluate morphological feature (Date not show)
1) Three state of samples were occurred in pretreated MCC sample related the amount of water in ionic liquids (ILs) mixture system
Summary
Microcrystalline Cellulose (MCC), as a steadily renewable native resources, and its derivatives are of great importance. Cellulose and its derivatives as films, fibers, and granules are manufactured by chemical transformations generally include reduction, hydrogenation and dehydration reactions. How to cite this paper: Wang, Q.Y., et al (2014) Effect of Water Content on Crystalline Structure of Ionic Liquids Mixture Pretreated Microcrystalline Cellulose (MCC). Some studies focus on the carbohydrate pretreatment by ionic liquids (ILs) with or without water. ILs solvents are able to catalyze homogenous hydrous is of cellulose by strong minerals or organic acids [9] [10]. This mixture system could contribute to an innovative process for the large-scale usage of cellulose depolymerization during the pretreatment step [11]. Its interpretation and applicability of ILs mixture systems are still under discussion
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