| 학회 |
한국고분자학회 |
| 학술대회 |
2021년 가을 (10/20 ~ 10/22, 경주컨벤션센터) |
| 권호 |
46권 2호 |
| 발표분야 |
콜로이드 및 분자조립 부문위원회 Ⅰ,Ⅱ |
| 제목 |
Tensile and frictional tuning of liquid crystal polymer network by mesogenic unit patterning |
| 초록 |
Fine tuning of a polymer film’s mechanical property widens applicability, because an optimized toughness or roughness depends on the application. In this work, liquid crystal polymer network (LCN) films with periodic mesogenic unit patterns are developed. The patterning of LCN is achieved by applying electric field with crossed electrodes to the monomeric mixture in nematic phase. Final in-situ photo-polymerization completes an LCN film retaining the arrangement. Increasing the pattern periodicity in a unit area enhances elastic modulus and toughness of the LCN film. Also, friction coefficient of our LCN film gradually decreases under heat, because the contact area is reduced due to the topographical change at high temperature. This work can be used to develop novel smart material applications such as soft robotics, artificial muscle, and active haptic interface. |
| 저자 |
이창재1, 유라2, 강수민3, 윤동기1
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| 소속 |
1한국과학기술원 (KAIST), 2삼성전자, 3한국기계(연) |
| 키워드 |
liquid crystal polymer network; tensile property; friction; self-assembly
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| E-Mail |
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