2-Dimensional colloidal micropatterning of cholesteric liquid crystal microcapsules for temperature-responsive color displays
| Autor: | Minjeong Seo, Sang Woo Han, Jin Woong Kim, Sohee Jeong, Song-Ee Choi, Hakyeong Yang, Shin-Hyun Kim, Woo Jin Lee, Bohyun Kim |
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| Rok vydání: | 2018 |
| Předmět: |
Thermochromism
Materials science Cholesteric liquid crystal General Chemical Engineering Microfluidics Dispersity 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Stencil 0104 chemical sciences Chemical engineering Liquid crystal 0210 nano-technology Layer (electronics) Micropatterning |
| Zdroj: | Journal of Industrial and Engineering Chemistry. 68:393-398 |
| ISSN: | 1226-086X |
| DOI: | 10.1016/j.jiec.2018.08.014 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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