Analysis on Anormarou Crystallization and mum-Size Pores Formation Mechanism of Triglycerides

甘油三酯的异形结晶及微米级孔形成机理分析

• 批准号: 08640649
• 负责人: KANEKO Fumitoshi
• 金额: $ 1.41万
• 依托单位: Osaka University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1996
• 资助国家: 日本
• 起止时间: 1996 至 1997
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08640649/
• 关键词: triglyceride; tripalmitin; crystal growth; pores formation; polymorphism; 多孔質; 顕微赤外分光

Crystallization process of tripalmitin has been studied by means of X-ray diffraction and scattering, IR microscope, Raman scattering and microscope observation. Its crystallization behavior dependes markedly on crystallization temperature Tc as follows ; Tc<40ﾟC : alpha, 45<Tc<50ﾟC : beta', and Tc<50ﾟC : beta. The beta phase, which is the stable phase and has T//type subcell, shows an anomalous crystallization in the temperature region of 51-55ﾟC.Although a single crystal of b gradually grows as plate crystal initially, the growth rate increases abruptly and the crystal grows as a massive crystal.By specific volume measurement using dilatometry, it is clarified that a rapid decrease in density takes place after a rapid density increase due to crystallization when a massive crystal appears. The density decrease comes from the occurrence of defects in the crystal. The X-ray diffraction and scattering experiment showed that there was no essential differences between the usual beta crystal and the massive beta crystal and that many mm-size pores had been generated in the specimen.This study has revealed also that the beta phase can be classified into two phases ; b1 obtained by solution and melt crystallization and beta2 obtained by the alpha*beta solid-state transition. Polarized IR spectra showed that the two beta phases differ in the conformation of the glycerol backbone.

已经通过X射线衍射和散射，IR显微镜，拉曼散射和显微镜观察研究了三级蛋白的结晶过程。它的结晶行为明显取决于结晶温度TC，如下所示。 TC <40ﾟC：Alpha，45 <tc <50ﾟC：beta'和tc <50ﾟC：beta。 β阶段是稳定的阶段并且具有T //型子细胞，在虽然B的单个晶体最初随着平板晶体的形式逐渐生长，生长速率突然增加，并且晶体的生长作为大量晶体的晶体生长。通过稀释剂的特定体积测量，可以阐明晶体的快速降低，而在晶体中会迅速降低晶体的降低，而晶体均快速降低了晶体的变化。密度因晶体缺陷的发生而降低。 X射线衍射和散射实验表明，通常在试样中产生了许多MM大小的孔，并且已经揭示了Beta相可以分类为两个阶段。 B1通过溶液和熔体结晶和通过α*β固态过渡获得的b1获得。极化IR光谱表明，两个β阶段在甘油主链的构象上有所不同。

项目成果

F.Kaneko 他、3名: "Martensitic Phase Transition of Petroselinic Acid" J.Phys.Chem.B.101・2. 285-292 (1997)

F. Kaneko 等，3 位作者：“岩芹酸的马氏体相变”J.Phys.Chem.B.101・2（1997）。

F.Kaneko他、3名: "Martensitic Phase Transition of Petroselinic Acid" J.Phys.Chem.B. 101・2. 285-292 (1997)

F. Kaneko 等，3 位作者：“岩芹酸的马氏体相变”J.Phys.Chem.B 101・2 285-292 (1997)。

F.Kaneko, M.Kobayashi, K.Sato, J.Yano: "Martensitic Phase Transition of Petroselinic Acid" J.Phys.Chem.B.101・2. 285-292 (1997)

F.Kaneko、M.Kobayashi、K.Sato、J.Yano：“岩芹酸的马氏体相变”J.Phys.Chem.B.101・2（1997）。

F.Kaneko 他、4名: "Two Martensitic Transitions in the Opposite Directions in Petroselinic Acid" J.Phys.Chem.B.102・2. 327-330 (1998)

F. Kaneko 等人，4 位作者：“Petroselinic Acid 中相反方向的两个马氏体转变”J.Phys.Chem.B.102·2（1998）。

F.Kaneko, H.Tsujiuchi, K.Tashiro, M.Suzuki: "Two Martensitic Transitions in the Opposite Directions in Petroselinic Acid" J.Phys.Chem.B.102・42. 327-330 (1997)

F.Kaneko、H.Tsujiuchi、K.Tashiro、M.Suzuki：“岩芹酸中相反方向的两个马氏体转变”J.Phys.Chem.B.102・42 (1997)。