Crystallization of Organic Compounds in Reversed Micelles. II. Crystallization of Glycine and l-Phenylalanine in Water−Isooctane−AOT Microemulsions
Crystallization of Organic Compounds in Reversed Micelles. II. Crystallization of Glycine and l-Phenylalanine in Water−Isooctane−AOT Microemulsions
复制标题
反胶束中有机化合物的结晶 II. 水-异辛烷-AOT 微乳液中甘氨酸和 L-苯丙氨酸的结晶。
DOI：
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发表时间：
2000
期刊：
影响因子：
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通讯作者：
N. Garti
中科院分区：
文献类型：
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作者：
J. Yano;H. Füredi;A. Wachtel;N. Garti
The crystallization of glycine and l-phenylalanine from water−isooctane microemulsions stabilized by AOT (sodium di-2-ethylhexyl sulfosuccinate) has been investigated. Crystallization phenomena were strongly affected by the localization of the solubilized molecules within the microemulsion droplets. In the case of glycine, which is solubilized within the water pools, a significant reduction in crystal size was observed in the temperature range investigated (Ti = 35 °C, Tc = 5 °C). While crystals formed in aqueous solution usually grow to millimeter sizes, glycine crystals grown from microemulsions were submicron to micron in size. In addition, the α-form was only observed from aqueous solution, while the γ-form was the predominant form from microemulsions. In the case of phenylalanine molecules, which are located primarily at the W/O interface, morphology and polymorphism were also affected in addition to crystal size. While phenylalanine crystallizes from aqueous solution in the form of two polymorphs, i...
