| 학회 |
한국공업화학회 |
| 학술대회 |
2015년 가을 (11/04 ~ 11/06, 제주국제컨벤션센터(ICCJEJU)) |
| 권호 |
19권 2호 |
| 발표분야 |
(정밀화학) 광감음성 물질 및 이의 응용 기술 |
| 제목 |
Replica Molding of Vertically Aligned Liquid Crystalline Polymer Microstructures |
| 초록 |
Molecularly anisotropic polymers can be manufactured into a wide variety of forms capable of actuation upon application of external stimuli. In particular, incorporation of the liquid crystal molecules in polymeric networks enables facile route to align mesogenic units within microstructures. Most studies of current thermomechanical actuation of liquid crystalline polymers have used millimeter-scale and larger shapes, and only a few studies reported thermally responsive liquid crystal polymer microstructures. Here we present the thermomechanical response of glassy azobenzene-functionalized liquid crystalline polymer networks in micropillar geometries. Large-arrays of uniform polymer microstructures are fabricated by replica molding of using a polydimethylsiloxane (PDMS) template, and the molecular orientation of the polymer is manipulated by applying a magnetic field during photocuring the molten monomer mixture in the mold. We discuss how the micropillar and liquid crystal geometry influence the stimuli response from the highly crosslinked polymer network. |
| 저자 |
A. John Hart1, Sanha Kim1, Alvin Orbaek White1, Davor Copic2, Hangbo Zhao1, 위정재3
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| 소속 |
1MIT, 2Univ. of Michigan, 3인하대 |
| 키워드 |
Liquid crystalline polymers; stimuli-responsive polymers; replica molding
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| E-Mail |
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