Thermal behaviors of trehalose dihydrate (Th) and β-anhydrous trehalose (Tβ) have been investigated by in-situ laboratory parallel-beam X-ray powder diffraction. Data indicate that both phases show essentially the same volume expansion but expansion of the anhydrous form is markedly anisotropic due to the features of the hydrogen-bond network. Under the present experimental conditions, dehydration starts at 66 °C and within the 75< T<114 °C the presence of the Tα anhydrous polymorphic form has been detected. © Springer Science+Business Media, LLC 2009.
Thermal behavior of trehalose dihydrate (Th) and β-anhydrous trehalose (Tβ) by in-situ laboratory parallel-beam X-ray powder diffraction / Ballirano, Paolo; Sadun, Claudia. - In: STRUCTURAL CHEMISTRY. - ISSN 1040-0400. - STAMPA. - 20:5(2009), pp. 815-823. [10.1007/s11224-009-9473-5]
Thermal behavior of trehalose dihydrate (Th) and β-anhydrous trehalose (Tβ) by in-situ laboratory parallel-beam X-ray powder diffraction
BALLIRANO, Paolo;SADUN, Claudia
2009
Abstract
Thermal behaviors of trehalose dihydrate (Th) and β-anhydrous trehalose (Tβ) have been investigated by in-situ laboratory parallel-beam X-ray powder diffraction. Data indicate that both phases show essentially the same volume expansion but expansion of the anhydrous form is markedly anisotropic due to the features of the hydrogen-bond network. Under the present experimental conditions, dehydration starts at 66 °C and within the 75< T<114 °C the presence of the Tα anhydrous polymorphic form has been detected. © Springer Science+Business Media, LLC 2009.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
