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제118회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Programmable volume phase transition of hydrogels for static motion bilayer actuators with large thermal hysteresis

등록일
2016년 8월 31일 20시 50분 47초
접수번호
2294
발표코드
POLY.P-88 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
10월 13일 (목요일) 11:00~12:30
발표형식
포스터
발표분야
고분자화학
저자 및
공동저자
김도완, 이은수, 윤진환*
동아대학교 화학과, Korea
Programmable volume phase transition of the hydrogel was achieved by the large thermal hysteresis of poly(N-isopropylacrylamide)-graft-methylcellulose hydrogel (PNIPAm- g-MC), which was prepared through the grafting of PNIPAm onto a MC backbone and simultaneous crosslinking of the chains. Due to the stabilized aggregates formed by the intermolecular interactions of the MC backbone, a large thermal hysteresis in volume change could be achieved. By combining the prepared hydrogel with photothermal materials, programmable volume change can be triggered by light irradiation and excessive cooling. We demonstrated that static bending of the fabricated bilayer actuator that comprising PNIPAm-g-MC/MNP as the active layer and PAAm as the passive layer in response to light irradiation is possible, meaning that the material has the ability to memorize its irradiation history, and have that memory erased by cooling.

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