Citation: Zhang Hongyue, Wang Qian, Wang Dong, Tian Sisi, Zhao Tong. Preparation and Characterization of Cholesteric Liquid Crystal Microcapsules[J]. Chemistry, ;2020, 83(12): 1122-1126. shu

Preparation and Characterization of Cholesteric Liquid Crystal Microcapsules

Zhang Hongyue ^1,2 ,
Wang Qian ^1,, ,
Wang Dong ² ,
Tian Sisi ¹ ,
Zhao Tong ¹

1.
CAS key Laboratory of Science and Technology on High-tech Polymer Materials, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190
2.
Material Science and Engineering School, University of Science & Technology Beijing, Beijing, 100083

Corresponding author: Wang Qian, wanqian0045@163.com
Received Date: 10 June 2020
Accepted Date: 22 July 2020

Figures(9)

In order to achieve the dispersion and protection of liquid crystals, the encapsulation of cholesteric liquid crystal (CLC) was carried out. Liquid crystal microcapsules were prepared by a free radical polymerization and their morphology and size distribution were explored by using SEM and laser particle size analyzer and other analysis methods. The composition of liquid crystal microcapsules was proved by FT-IR spectrometer, and the optical characteristics of them heated before and after was investegated by polarizing optical microscope (POM). When the raw material input ratio is 5:4, the shear rate is 7000 r/min, the shear time is 10min, and the dosage of emulsifier (HSMA) is 5mL, the prepared CLC microcapsules have the advantages of good monodispersity, excellent color rendering, high temperature resistance, and can be made into thermochromic liquid crystal film.
- Liquid crystal,
- Microencapsulation,
- Dispersion,
- Color development,
- Particle size distribution
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