Dielectric relaxation of 1-hydroxyadamantane

被引：2
|
作者：
Kosmowska, M. [1 ]
Tarasiewicz, J. [1 ]
Adamczyk, M. J. [1 ]
机构：
[1] Univ Wroclaw, Fac Chem, PL-50383 Wroclaw, Poland
来源：
CHEMICAL PHYSICS LETTERS | 2013年 / 579卷
关键词：
THERMODYNAMIC PROPERTIES; PHASE-TRANSITIONS; SUBSTITUTED ADAMANTANES; MOLECULAR MOTIONS; PLASTIC CRYSTALS; 1-BROMOADAMANTANE; 1-ADAMANTANOL; DERIVATIVES; DISORDER; STATE;
D O I：
10.1016/j.cplett.2013.06.032
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：
Electric properties were examined on polycrystalline samples of 1-hydroxyadamantane in the temperature range from 289 to 400 K and the frequency range from 10 to 1000 MHz. The frequency and temperature dependence of electric properties were analyzed using the Cole-Cole model of dielectric relaxation. The activation energy which describes the reorientation of 1-hydroxyadamantane, in the orientationally disordered phases, under electric field has been calculated. TGA and DSC measurements confirmed the presence of phase transitions. The linear thermal expansion measurement evidences that in the orientationally disordered phase (crI) the changes in the shape of the crystal are isotropic. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：64 / 67
页数：4
相关论文
共 50 条
12345