Title of article
Compressed-exponential relaxations in supercooled liquid trehalose
Author/Authors
Seo، نويسنده , , Jeong-Ah and Kwon، نويسنده , , Hyun-Joung and Kataoka، نويسنده , , Kunimitsu and Ohshima، نويسنده , , Ken-ichi and Shin، نويسنده , , Dong-Myeong and Kim، نويسنده , , Hyung Kook and Hwang، نويسنده , , Yoon-Hwae، نويسنده ,
Issue Information
دوماهنامه با شماره پیاپی سال 2012
Pages
5
From page
1548
To page
1552
Abstract
We investigated the α-relaxations in supercooled liquid trehalose by using photon correlation spectroscopy (PCS) and found an interesting compressed-exponential relaxation at temperatures above 140 °C. The q−1 dependence of its relaxation time corresponds to an ultraslow ballistic motion due to the local structure rearrangements. In the same temperature range, we found the glycosidic bond structure changes in trehalose molecule from the Raman scattering and the X-ray direction measurements. We concluded that the compressed-exponential relaxation in supercooled liquid trehalose might originate from the intra-molecular (glycosidic bond) structure change.
Keywords
Disaccharides , Compressed-exponential , relaxations , Trehalose , Sugar glass
Journal title
Current Applied Physics
Serial Year
2012
Journal title
Current Applied Physics
Record number
1789858
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