期刊
JOURNAL OF CHEMICAL PHYSICS
卷 149, 期 22, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.5051515
关键词
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资金
- Netherlands Organization for Scientific Research (NWO)
- company Paques B.V.
- research program MES meets DES [STW-Paques 12999]
The centrifuge method is a novel, equilibrium-based, analytical procedure that allows the construction of solid-liquid phase diagrams of binary eutectic mixtures. In this paper, the development, optimization, and successful verification of the centrifuge method are described. Contrary to common dynamic analysis techniques-differential scanning calorimetry and hot-stage microscopy-the studied mixtures are equilibrated at constant temperature. Therefore, the mixtures do not need to be recrystallized from the melt during analysis. This offers a great advantage for mixtures that exhibit strong supercooling behavior rather than direct crystallization. The centrifuge method was verified by reproducing the binary eutectic phase behavior of both the nearly ideal biphenyl-bibenzyl system and the strongly non-ideal deep eutectic solvent (DES) urea-choline chloride, which is prone to supercooling. Hence, the centrifuge method offers an alternative route to common dynamic analysis techniques for the quantification of the liquid range of DESs and other binary eutectic mixtures. Published by AIP Publishing.
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