THERMAL STUDY OF WATER BETA-CYCLODEXTRIN INTERACTIONS

被引：12

作者：

MARINI, A ^{[1
]}

BERBENNI, V ^{[1
]}

MASSAROTTI, V ^{[1
]}

MUSTARELLI, P ^{[1
]}

RICCARDI, R ^{[1
]}

GAZZANIGA, A ^{[1
]}

GIORDANO, F ^{[1
]}

BRUNI, G ^{[1
]}

VILLA, M ^{[1
]}

机构：

[1] DIPARTIMENTO FIS A VOLTA,I-27100 PAVIA,ITALY

来源：

SOLID STATE IONICS | 1993年 / 63-5卷

关键词：

D O I：

10.1016/0167-2738(93)90129-Q

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

It is shown that water/beta-cyclodextrin system has a complex behaviour above room temperature, and displays phenomena which may be separately analyzed under carefully chosen conditions: in dry atmosphere, and/or below 60-degrees-C, the release of water occurs much faster than the expected structural transformation from the hydrated to the dehydrated structure. It is argued that this transition contributes substantially to the endothermic DSC peak usually attributed to dehydration. After completing its first transition to the dehydrated structure, a water grown sample undergoes a dramatic (approximately 15%) and irreversible expansion, which apparently does not modify the crystal structure.

引用

页码：358 / 362

页数：5

共 8 条

[1] TOPOGRAPHY OF CYCLODEXTRIN INCLUSION COMPLEXES .20. CIRCULAR AND FLIP-FLOP HYDROGEN-BONDING IN BETA-CYCLODEXTRIN UNDECAHYDRATE - A NEUTRON-DIFFRACTION STUDY [J].