Thermotropic Lamellar-to-Columnar Phase Transition Exhibited by a Biforked Compound

被引：39
|
作者：
Guillon, D. [1 ]
Heinrich, B. [1 ]
Ribeiro, A. C. [1 ,2 ]
Cruz, C. [2 ]
Nguyen, H. T. [3 ]
机构：
[1] Inst Phys & Chim Mat Strasbourg, Grp Mat Organ, F-67037 Strasbourg, France
[2] Ctr Fis Mat Condensada, P-1699 Lisbon, Portugal
[3] Ctr Rech Paul Pascal, F-33600 Pessac, France
来源：
MOLECULAR CRYSTALS AND LIQUID CRYSTALS SCIENCE AND TECHNOLOGY SECTION A-MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 1998年 / 317卷
关键词：
Phase transition; X-ray diffraction; Biforked compound;
D O I：
10.1080/10587259808047105
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
In this work we present a structural study of the smectic C(S(C)) and columnar (Col(h)) liquid-crystalline phases exhibited by a biforked molecule. This study was performed by means of dilatometry and X-ray diffraction measurements performed at different temperatures. Following these measurements, molecular packing within lamellar and columnar mesophases of this compound is discussed; finally, a mechanism for the lamellar-columnar transition is proposed.
引用
收藏
页码：51 / 64
页数：14
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