| 학회 |
한국고분자학회 |
| 학술대회 |
2013년 봄 (04/11 ~ 04/12, 대전컨벤션센터) |
| 권호 |
38권 1호 |
| 발표분야 |
대학원생 구두발표(발표10분) |
| 제목 |
Synthesis of Monodispersed Microspheres from Laplace Pressure Induced Droplets in Micromolds |
| 초록 |
We present a novel micromolding method that generates monodisperse microspheres through surface-tension-induced flow. Two immiscible fluids that consist of photocurable monomer and hydrophobic oil are sequentially applied onto the mold. The mold geometry results in Laplace pressure induced droplet formation, and these droplets formed are individually localized into each micromold. We quantitatively calculated the minimum pressure difference required to provide spherical droplets. Photopolymerization of the droplets allow for the formation of polymer microspheres with narrow size distribution (CV=1.9%). We obtained the microspheres with diameter ranging from 60 to 200 μm by control of mold dimensions. We provide a synthesis method to produce microspheres in micromolds for various reaction schemes: UV-polymerization, sol-gel reactions and colloidal assemblies. |
| 저자 |
최창형1, 김종민1, 강성민1, 이진기2, 이창수1
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| 소속 |
1충남대, 2성균관대 |
| 키워드 |
Microspheres; Laplace pressure; micromold
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| E-Mail |
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