Controlling chirality with helix inversion in cholesteric liquid crystals

被引：103

作者：

Katsonis, Nathalie ^{[1
]}

Lacaze, Emmanuelle ^{[2
,4
]}

Ferrarini, Alberta ^{[3
]}

机构：

[1] Univ Twente, MESA Inst Nanotechnol, NL-7500 AE Enschede, Netherlands

[2] UPMC Univ Paris 06, INSP, UMR 7588, F-75005 Paris, France

[3] Univ Padua, Dipartimento Sci Chim, I-35131 Padua, Italy

[4] CNRS, F-75005 Paris, France

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2012年 / 22卷 / 15期

关键词：

CHIROPTICAL MOLECULAR SWITCH; CIRCULAR-DICHROISM; HELICITY-INVERSION; POLY(GAMMA-BENZYL L-GLUTAMATE); ABSOLUTE-CONFIGURATION; ORIENTATIONAL ORDER; REFLECTANCE LIMIT; TWISTING POWER; NEMATIC PHASES; DECYL ESTER;

D O I：

10.1039/c2jm15962g

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：

The helical organization of cholesteric liquid crystals is omnipresent in living matter. Achieving control over the structure of the cholesteric helix consequently holds great potential for developing stimuli-responsive materials matching the level of sophistication of biological systems. In particular, inversion of a cholesteric helix is associated with inversion of the circular polarization of the light it reflects. While control over the cholesteric period has been thoroughly investigated, reports on helix inversion are scarcer. Predicting which systems display helix inversion also remains a challenge because of the subtle balance of contributions underlying this phenomenon. Here we provide an overview on recent advances in controlling and understanding helix inversion in cholesteric liquid crystals.

引用

页码：7088 / 7097

页数：10

共 110 条

[1] DEUTERIUM NMR ANALYSIS OF POLY(GAMMA-BENZYL L-GLUTAMATE) IN THE LYOTROPIC LIQUID-CRYSTALLINE STATE - ORIENTATIONAL ORDER OF THE ALPHA-HELICAL BACKBONE AND CONFORMATION OF THE PENDANT SIDE-CHAIN [J].