- 성과
- 논문 (학술지) Low-temperature reprogrammable dual light-responsive liquid crystallineelastomer films
| 등록번호 | - |
SCI 구분
※구분 : SCI(SCIE포함), 비SCI
|
SCI |
|---|---|---|---|
| 저자명 (주·공동저자) | -; | ||
| 논문구분 | 국외전문학술지 | 학술지명 | Chemical Engineering Journal |
| ISSN | 1385-8947 | 학술지 출판일자 | 2023-06-15 |
| 학술지 볼륨번호 | 466(15) | 논문페이지 | 143368 ~ 143381 |
| 학술지 임팩트팩터 | 16.744 | 기여율 | 100 % |
| DOI | https://doi.org/10.1016/j.cej.2023.143368 | ||
- 초록
- The liquid crystal elastomers (LCEs) possessing azobenzene moieties and boron ester bonds were prepared using Michael addition reaction and photopolymerisation. The azobenzene moieties imparted the LCEs with photoresponsiveness, whereas the boron ester bonds enabled the LCEs to undergo director alignment, reprogramming, and self-healing through a dynamic bond exchange reaction (DBER). This combined strategy overcame the competition between actuation and a DBER at high temperatures, which has been a drawback in the previously developed LCE vitrimers. Interestingly, the developed monodomain LCEs (MLCEs) showed the bending actuation in responsive to both UV and blue lights and unbending motion in responsive to green light, which paves the way for the design of new actuators for biomedical applications. Furthermore, taking advantage of the dynamic nature of boron ester chemistry, bilayer-structured actuators capable of thermo- or photo-controllable bending/unbending motions were fabricated by welding the MLCE film with a poly(ethylene terephthalate) substrate or itself below their nematic-to-isotropic transition temperatures via a ‘glue-free’ method. The MLCEs developed in this study can undergo multidirectional movements in response to different stimuli and can be used in applications such as microrobots, untethered biomimetic grippers, and surgical instruments.
☞ 성과발생연도 2022년 이후 논문은 조사분석 미확정 정보이며, 조사분석 확정시 기여율 등 일부 정보가 변경될 수 있습니다.
-
※ 연구개발성과 등록 또는 활용에 대한 문의는 논문 연구개발성과 담당자를 통해 문의하시기 바랍니다.
[문의] 한국과학기술정보연구원 Tel : 042)716-7066, https://curation.kisti.re.kr/
※ NTIS 관련 이용문의는 NTIS 콜센터(042-869-1115)로 문의하시기 바랍니다.
