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2-Dimensional colloidal micropatterning of cholesteric liquid crystal microcapsules for temperature-responsive color displays

Title
2-Dimensional colloidal micropatterning of cholesteric liquid crystal microcapsules for temperature-responsive color displays
Author
김진웅
Keywords
Microfluidics; Liquid crystals; Microcapsules; Colloidal array; Temperature-responsive sensor
Issue Date
2018-12
Publisher
ELSEVIER SCIENCE INC
Citation
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, v. 68, page. 393-398
Abstract
This work offers a promising approach for development of a temperature-responsive colorimetric display platform. For this purpose, uniform thermochromic microcapsules consisting of a cholesteric liquid crystal (CLC) core and a thin polyurethane shell layer were fabricated by conducting in-situ condensation polymerization at the interface of monodisperse CLC-in-water emulsion drops. Colloidal packing-driven microcapsule registry led to exact 2-dimensional positioning of CLC microcapsules into a holes-patterned flexible film stencil. Furthermore, we showed that the designated registry of different color types of CLC microcapsules on the stencil enabled development of a microwriting display technology capable of reversible text representation according to temperature change. (C) 2018 The Korean Society of industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
URI
https://www.sciencedirect.com/science/article/pii/S1226086X18304696?via%3Dihubhttps://repository.hanyang.ac.kr/handle/20.500.11754/120952
ISSN
1226-086X; 1876-794X
DOI
10.1016/j.jiec.2018.08.014
Appears in Collections:
GRADUATE SCHOOL[S](대학원) > BIONANOTECHNOLOGY(바이오나노학과) > Articles
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