期刊
SOLID STATE COMMUNICATIONS
卷 148, 期 1-2, 页码 78-82出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ssc.2008.07.002
关键词
organic crystals; disordered systems; order-disorder effects; thermodynamic properties
资金
- FEDER
- Nord/Pas-deCalais region
The structural and thermodynamic changes in the organic molecular crystals of alpha-D-glucose and beta-D-glucose upon high energy ball milling at room temperature and -15 degrees C have been studied. The investigations have been performed by X-ray diffraction, differential scanning calorimetry and Raman spectroscopy. The results show the possibility to reach the glassy amorphous state of both forms of glucose, if mechanical milling is performed far enough below the glass transition temperature of the corresponding liquid (T(g) approximate to 38 degrees C). This route to the glassy state is found to be free of mutarotation whatever the starting glucose variety, while this mutarotation is unavoidable using the usual thermal quench of the liquid. (C) 2008 Elsevier Ltd. All rights reserved.
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