Size Control of Cholesteric Liquid Crystalline Microcapsules

作者：Uchida Yoshiaki^*; Iwai Yosuke; Akita Takuya; Yamamoto Kaho; Nishiyama Norikazu

来源：Molecular Crystals and Liquid Crystals, 2015, 613(1): 82-87.

DOI：10.1080/15421406.2015.1032066

• water-in-oil-in-water double emulsion
• 1,4:3,6-dianhydro-2,5-bis[4-(n-hexyl-1-oxy)benzoic acid]sorbitol
• 4-cyano-4 '-pentylbiphenyl
• microfluidic devices
• cholesteric liquid crystals

We have succeeded the size-controlled fabrication of water-in-oil-in-water (W/O/W) double emulsion droplets with a cholesteric liquid crystalline (CLC) material, which is a mixture of a nematic liquid crystalline compound, 4-cyano-4 '-pentylbiphenyl (5CB), and a chiral dopant, 1,4:3,6-dianhydro-2,5-bis[4-(n-hexyl-1-oxy)benzoic acid]sorbitol [ISO(6OBA)(2)], as the shell phase and an aqueous poly(vinylalcohol) (PVA) solution as the core and outer phases (CLC microcapsules). Here we report the size-controlled fabrication of the CLC microcapsules and the size-dependence of their transmission spectra.

• 出版日期2015-5-24