Phase behavior of banana-shaped molecules under pressure

被引：7
|
作者：
Maeda, Y
Niori, T
Yamamoto, J
Yokoyama, H
机构：
[1] Natl Inst Adv Ind Sci & Technol, Nanotechnol Res Inst, Tsukuba, Ibaraki 3058565, Japan
[2] JST, Yokoyama Nanostruct Liquid Crystal Project, Tsukuba, Ibaraki 3002635, Japan
来源：
THERMOCHIMICA ACTA | 2005年 / 431卷 / 1-2期
关键词：
banana-shaped liquid crystals; high-pressure DTA; T-P phase diagram; B-1 and B-2 phases; high-pressure crystal phase;
D O I：
10.1016/j.tca.2005.01.047
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The phase transition behavior of two achiral bent core banana-shaped molecules, 3- and 3-(3'-chloro-)(4'-n-octyloxybenzoyloxyphenyliminomethyl)phenyl-4"-n-octyloxy biphenylcarboxy late (I and II), showing the B-1 and B-2 banana phases, respectively, was investigated under hydrostatic pressures up to 300 MPa using a high-pressure differential thermal analyzer. The T versus P phase diagrams for I and Il compounds were constructed. Both the temperature regions of the B, and B, phases for I and II compounds are maintained in the whole pressure range and the B-1 and B-2 phases are thermodynamically stable under pressures. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：87 / 93
页数：7
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