Dynamic decoupling and molecular complexity of flass-forming maltitol

被引：24

作者：

Carpentier, L ^{[1
]}

Descamps, M ^{[1
]}

机构：

[1] Univ Lille 1, Ctr Hyperfrequences & Semicond, CNRS, UMR 8024,Lab Dynam & Struct Mat Mol, F-59655 Villeneuve Dascq, France

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2003年 / 107卷 / 01期

关键词：

D O I：

10.1021/jp026500r

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：

A low frequency dielectric study of glass-forming maltitol and sorbitol has been performed. It enables us to show an. effect of a side branching on the sub-T-g relaxation curves. This molecular complexity has no effect on the temperature evolution of the secondary relaxation times of both compounds, which superimpose perfectly. However, side branching leads in maltitol to a sharpening of the corresponding distribution and occurrence of an intermediate strongly activated process, which has no separate secondary counterpart.

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页码：271 / 275

页数：5

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