| 학회 |
한국고분자학회 |
| 학술대회 |
2012년 봄 (04/12 ~ 04/13, 대전컨벤션센터) |
| 권호 |
37권 1호 |
| 발표분야 |
고분자구조 및 물성 |
| 제목 |
Phase separation of a liquid crystal/diacrylate monomer mixture induced by photo-polymerization in a microfluidic channel |
| 초록 |
A microfluidics chip was used with UV exposure for making functional particles using a tripropane glycol diacrylate(TPGDA)/4-cyano-4’-pentylbiphenyl(5CB) mixture with photoinitiator as the disperse phase and water as the continuous phase. The oil in water droplets were successfully made in the microfluidics channel with a narrow size-dispersity. The initial homogenous droplet was phase-separated into the two-phase droplet by UV exposure. The core and shell in the two-phase droplet were 5CB-rich and poly(TPGDA)-rich, respectively. The phase-separated droplets were easily observed from an optical microscope with crossed polarizers. The effect of the concentration of the photo-initiator and the mixture ratio was explored in this study. The various-shape droplets including vesicles and porous sphere could be produced after removing 5CB in ethanol from the phase-separated droplet. This facile method may be applied to many fields such as drug delivery and ink-jet systems |
| 저자 |
김지연, 박수영
|
| 소속 |
경북대 |
| 키워드 |
microfluidic; droplet; TPGDA; 5CB
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| E-Mail |
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