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http://dx.doi.org/10.7464/ksct.2018.24.2.105

Fabrication of Anisotropic Hexagram Particles by using the Micromolding Technique and Selective Localization of Patch  

Shim, Gyurak (Department of Chemical Engineering and Applied Chemistry, Chungnam National University)
Yeom, Su-Jin (Department of Chemical Engineering and Applied Chemistry, Chungnam National University)
Jeong, Seong-Geun (Department of Chemical Engineering and Applied Chemistry, Chungnam National University)
Kang, Kyoung-Ku (Department of Chemical Engineering and Applied Chemistry, Chungnam National University)
Lee, Chang-Soo (Department of Chemical Engineering and Applied Chemistry, Chungnam National University)
Publication Information
Clean Technology / v.24, no.2, 2018 , pp. 105-111 More about this Journal
Abstract
This study presents a novel and eco-friendly process that can precisely control the location of the patches on the patch particles. The method of manufacturing these anisotropic hexagram patch particles consists of sequential combinations of two separate methods such as a sequential micromolding technique for fabricating patch particles and a selective localization method for controlling the location of patches on the patch particles. The micromolding technique was carried out using physicochemically stable material as a micromold. In order to fabricate the highly stable patch anisotropic hexagram particles, the perfluoropolyether (PFPE) micromold was used to the process of the micromolding technique because they could prevent the problem of diffusion of hydrophobic monomers while conventional poly(dimethylsiloxane) (PDMS) micromold is limited to prevent the problem of diffusion of hydrophobic monomers. Based on combination methods of the micromolding technique and the selective localization method, the reproducibility and stability have been improved to fabricate 12 different types of anisotropic hexagram patch particles. This fabrication method shows the unique advantages in eco-friend condition, easy and fast fabrication due to less number of process, the feasibility of a mass production. We believe that these anisotropic hexagram patch particles can be widely utilized to the field of the directional self-assembly.
Keywords
Anisotropic hexagram particle; Patch particle; Micromolding technique; Selective localization;
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Times Cited By KSCI : 1  (Citation Analysis)
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