| 학회 |
한국고분자학회 |
| 학술대회 |
2018년 가을 (10/10 ~ 10/12, 경주컨벤션센터) |
| 권호 |
43권 2호 |
| 발표분야 |
고분자합성 |
| 제목 |
Synthesis of Visible Light Switchable Azobenzene Liquid Crystalline Polymer Networks |
| 초록 |
Azobenzene has been used as a molecular machine to convert light energy into conformational change through trans-cis photoisomerization. However, azobenzene requires the use of high-energy UV light to trigger photoisomerization which limits their use in biomedical application because of damaging cells and degrading many macromolecular systems. Low fatigue resistance and low penetration are another concern for UV-based molecular machines. To overcome these problems, we synthesize a new class of azobenzene functionalized liquid crystalline polymer (LCP) networks that can be actuated by visible-light. The new azobenzene contains tetramethoxy groups in the ortho position, which allows a separation of n-π* absorption bands of trans (465 nm) and cis (450 nm). Our visible light responsive LCP has a great potential in various applications including soft-robotics, smart coatings and dynamic substrates for tissue engineering and printed electronics. |
| 저자 |
윤형호1, 이지은1, Peter V. Bonnesen2, 안석균1
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| 소속 |
1부산대, 2Oak Ridge National Laboratory |
| 키워드 |
Liquid crystal polymer; Azobenzene; actuator
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| E-Mail |
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