| 학회 |
한국공업화학회 |
| 학술대회 |
2021년 가을 (11/03 ~ 11/05, 대구 엑스코(EXCO)) |
| 권호 |
25권 2호 |
| 발표분야 |
포스터-고분자 |
| 제목 |
Shape, color-switchable block copolymer microparticles for hydrogel display application |
| 초록 |
We developed light-responsive block copolymer (BCP) particles, whose shape can be reversibly controlled. The surfactants having light-active groups were designed, which can reversibly modulate the interfacial activity to form shape changeable PS-b-P4VP microparticles. The designed surfactant, Spiropyran-DTAB can tune its amphiphilicity by wavelength-controlled light irradiation. Sphere particles with onion-like inner morphology and ellipsoidal particles with axially stacked lamellar domain structures are formed by exposing UV and visible light, respectively. In addition, the reversible, light-responsive particle shape transformation was successfully demonstrated 10 times by chloroform vapor annealing. Finally, the shape- and color-switchable BCP particles are integrated to form a composite hydrogel, demonstrating their potential as high-resolution displays with reversible patterning capabilities. |
| 저자 |
김진우1, 윤홍석2, 이영준1, 이준혁3, 구강희4, 김범준1
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| 소속 |
1KAIST, 2한양대, 3한국생산기술(연), 4충남대 |
| 키워드 |
spiropyran; photochromic surfactants; block copolymer particles; photoisomerization; light-responsive polymer particles |
| E-Mail |
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