The influence of cholesteric helical ordering on the dynamics of liquid crystal microdroplet coalescence

被引：0
|
作者：
Balenko, N. V. [1 ]
Bobrovsky, A. Yu. [1 ,2 ]
Dolganov, P. V. [3 ]
机构：
[1] Lomonosov Moscow State Univ, Dept Chem, Moscow, Russia
[2] Beam Engn Adv Measurements Co, Orlando, FL USA
[3] RAS, Osipyan Inst Solid State Phys, Chernogolovka, Russia
来源：
LIQUID CRYSTALS | 2024年 / 51卷 / 03期
基金：
俄罗斯科学基金会;
关键词：
Cholesterics; chiral-photochromic materials; droplet coalescence; viscous relaxation; INTERFACIAL-TENSION; NEMATIC DROPLETS; GIANT VESICLES; RETRACTION;
D O I：
10.1080/02678292.2024.2302456
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The dynamics of liquid crystal droplet coalescence in an isotropic melt was studied using polarised optical microscopy. Droplets of both nematic and cholesteric phases, formed from a mixture of nematic liquid crystal and chiral-photochromic dopant, were investigated. It was found that the characteristic coalescence times were significantly increased in the cholesteric phase compared to the nematic phase due to the presence of cholesteric helical ordering. In addition, these characteristic times increased as the cholesteric pitch decreased. [GRAPHICS] .
引用
收藏
页码：471 / 477
页数：7
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