Influence of surfactants in nematic liquid crystal droplets

被引：0
|
作者：
Hirankittiwong, Pemika [1 ]
Thongta, Jirote [2 ]
Hongkanchanakul, Natthawat [3 ]
Chattham, Nattaporn [4 ]
机构：
[1] Kasetsart Univ, Fac Sci & Engn, Dept Gen Sci, Chalermphrakiat Sakon Nakhon Prov Campus, Chiang Khruea 47000, Thailand
[2] Geoinfomat & Space Technol Dev Agcy GISTDA, Sriracha, Chonburi, Thailand
[3] Geoinfomat & Space Technol Dev Agcy GISTDA, Bangkok, Thailand
[4] Kasetsart Univ, Fac Sci, Dept Phys, Bangkok, Thailand
来源：
MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 2024年 / 768卷 / 18期
关键词：
Liquid crystals; surfactant; radial droplet; bipolar droplet; ORIENTATION; TRANSITIONS; BIPOLAR; DEVICES;
D O I：
10.1080/15421406.2024.2379668
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Liquid crystals in spherical droplets are highly sensitive to surfactants that control their orientation at interfaces. These molecules are widely used in optics. We fabricated 5CB liquid crystal droplets using SDS, CTAB, and DTAB surfactants at varying concentrations. We observed the transition from bipolar to radial at SDS concentration of 0.4 mM in 80 s, and from radial to bipolar at SDS concentration of 0.5 mM in 45 s. Surfactant concentration is the primary factor affecting liquid crystal droplet configuration, while headgroup, tail length, and architecture have minimal impact beyond the amount of absorbed surfactant in nematic liquid crystal droplets.
引用
收藏
页码：1129 / 1136
页数：8
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