Polymorphic transformation of the Γ-form of D-sorbitol upon milling: structural and nanostructural analyses

Jean-Francois Willart; Jacques Lefebvre; Florence Danede; Serge Comini; Philippe Looten; Marc Descamps

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Polymorphic transformation of the Γ-form of D-sorbitol upon milling: structural and nanostructural analyses

机译：研磨后D-山梨糖醇的Γ-型的多态转化：结构和纳米结构分析

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摘要

In this paper, we study the structural, nanostructural and thermodynamic evolutions of crystalline Γ-sorbitol upon mechanical milling. The investigations have been performed by powder X-ray diffraction and differential scanning calorimetry. The results clearly show that the evolution upon milling can be divided in two stages. The first one only reveals micro and nanostructural modifications of the crystallites appearing through a size reduction, deformations, and changes of shape. On the other hand, the second stage reveals a complete structural transformation of the Γ-form of sorbitol towards the metastable A-form of sorbitol. Special attention has been paid to the nanostructural features derived from the first stage, which trigger the ultimate structural transformation.

机译：在本文中，我们研究了机械研磨后结晶Γ-山梨糖醇的结构，纳米结构和热力学演变。已经通过粉末X射线衍射和差示扫描量热法进行了研究。结果清楚地表明，铣削时的演化可分为两个阶段。第一个仅揭示了通过尺寸减小，变形和形状变化而出现的微晶和纳米结构修饰。另一方面，第二阶段揭示了山梨糖醇的Γ-型向山梨醇的亚稳态A-型的完整结构转变。已经特别注意了从第一阶段衍生的纳米结构特征，这些特征触发了最终的结构转变。

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来源
《Solid State Communications》 |2005年第8期|p.519-524|共6页
作者
Jean-Francois Willart; Jacques Lefebvre; Florence Danede; Serge Comini; Philippe Looten; Marc Descamps;
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作者单位

Laboratoire de Dynamique et Structure des Materiaux Moleculaires, UMR CNRS 8024, ERT 1018, UFR de Physique, Universite des Sciences et Technologies de Lille, 59655 Villeneuve d'Ascq Cedex, France;

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正文语种 eng
中图分类固体物理学;
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A. Organic compounds; C. Differential scanning calorimetry (DSC); C. X-ray diffraction; D. Thermodynamic properties;

机译：A.有机化合物;C。差示扫描量热法（DSC）;C. X射线衍射;D。热力学性质;

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Polymorphic transformation of the Γ-form of D-sorbitol upon milling: structural and nanostructural analyses

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