| 학회 |
한국고분자학회 |
| 학술대회 |
2021년 봄 (04/07 ~ 04/09, 대전컨벤션센터) |
| 권호 |
46권 1호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
Shape-reconfigurable rGO patterned azo-LCN with tailored mechanical and electrical properties |
| 초록 |
The intelligent materials can expand functionality of various applications including optics, and electronics. In this presentation, we introduce multi-stimuli responsive azo functionalized liquid crystalline polymer networks (azo-LCN) monolithically integrated with patterned reduced graphene oxide (rGO) toward drastic enhancement in both mechanical and electrical properties with programmable shape-reconfiguration. The elastic modulus of the azo-LCN/rGO increases 5 times (6.4 GPa), and the electrical conductivity is measured to be 340 S/cm. Remarkably, the azo-LCN/rGO overcomes a trade-off relationship between stiffness and actuation strain. The azo-LCN/rGO demonstrates rapid 2D to 3D shape-transitions under multi-stimuli including UV, NIR, solar-ray and flame, which are induced by synergistic effects between photoisomerization, mismatch of thermal expansion. Finally, kirigami-inspired engineering is adapted to demonstrate potential in shape-reconfigurable stretchable electronics. |
| 저자 |
조웅비1, 전지수1, 이재경1, 엄원식2, 김동균3, 김용석3, 한태희2, 위정재1
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| 소속 |
1인하대, 2한양대, 3한국화학(연) |
| 키워드 |
liquid crystalline polymer networks; reduced graphene oxides; nanocomposites; stretchable electronics; photomechanical actuations
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| E-Mail |
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