| 학회 | 한국화학공학회 |
| 학술대회 | 2022년 봄 (04/20 ~ 04/23, 제주국제컨벤션센터) |
| 권호 | 28권 1호, p.1324 |
| 발표분야 | [주제 12] 화학공학일반(부문위원회 발표) |
| 제목 | Liquid Crystal Based Smart Polymer Printer via regulating chain reactions. |
| 초록 | Self-healing materials responding to external stimuli are particularly interesting due to their long-term stability and recovery ability, which have been potentially used in a variety of field. Special designs of polymers are the limitation for the conventional method which limits diverse applications. To overcome the limitation, here we show a simple and versatile strategy to access the self-healing properties via liquid crystals (LCs). We recently designed a Smart LCs system which trigger the escape of microdroplets that are elastically levitating within the LCs. By leveraging our recent work, we designed stimuli-responsive “polymer printer” that sense stimuli and then polymerize. Specifically, the polymer printer consists of two types of wells where the microdroplets containing monomer (e.g., alginate) and cross-linker (e.g., multivalent salt) are initially trapped in LCs. In response to target stimuli, the electric double layer helps the releasing of monomers and these monomers attract the cross-linker from the other wells. These releasing make the self-healing materials. This research has been supported by the POSCO Science Fellowship of POSCO TJ Park Foundation. |
| 저자 | 오광석, 김혜인, 최영선, 김영기 |
| 소속 | 포항공과대 |
| 키워드 | 재료(Materials) |
| 원문파일 | 초록 보기 |
