| 학회 |
한국화학공학회 |
| 학술대회 |
2009년 봄 (04/23 ~ 04/24, 광주 김대중컨벤션센터) |
| 권호 |
15권 1호, p.7 |
| 발표분야 |
고분자 |
| 제목 |
Janus Multilayer Deposition on a Patterned Post withStratified Block Copolymer Micelle Droplets in Microfluidic Channel |
| 초록 |
In our previous work, we have demonstrated that polyelectrolyte (PE) multilayer thin films deposited on posts with a large number of bilayers can be obtained in short process time using alternating PE droplets in a microfluidic channel. In this study, we present the Block Copolymer Micelle (BCM) multilayer thin films deposited on posts in a microfluidic channel, clearly demonstrating the process advantage over the conventional process. Positively- and negatively-charged BCM droplets in a microfluidic channel were alternatively generated, enabling the alternative adsorption of BCMs on posts in a microfluidic channel. The stratified droplets containing multiple aqueous reagents by injecting in a y-shaped capillary channel yield Janus LbL patterns with BCMs deposited on posts. It was shown that the intensities oftwo different fluorescence dyes incorporated within the BCMs increase with the deposition time. These experimental results were also compared with the numerical simulations taking into account the recirculation flow within a droplet during the impact on the post. |
| 저자 |
이미숙, 홍진기, 정창권, 박 욱, 이승종, 안경현, 권성훈, 차국헌
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| 소속 |
서울대 |
| 키워드 |
microfluidics; droplets; layer-by-layer; multilayers; block copolymer micelle
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| E-Mail |
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| 원문파일 |
초록 보기 |
