| 학회 |
한국공업화학회 |
| 학술대회 |
2020년 가을 (10/28 ~ 10/30, 광주 김대중컨벤션센터(Kimdaejung Convention Center)) |
| 권호 |
24권 1호 |
| 발표분야 |
포스터-고분자 |
| 제목 |
Reversibly Light-responsive, Shape-Tunalble Block Copolymer Particles Using Photo-responsive Surfactants |
| 초록 |
We developed light-responsive block copolymer (BCP) particles, whose shape can be reversibly controlled. The main idea for forming light-dependent, reversibly shape changeable BCP particles is to design the surfactant containing light-active groups, which can light-dependently modulate interfacial activity in reversible manner. We designed and synthesized light-responsive surfactant, SP-DTAB, which amphiphilicity can be tuned by wavelength controlled light irradiation. With irradiating 365nm UV light, sphere particles with onion-like inner morphology are formed. On the other hand, ellipsoidal particles with axially stacked lamellar domain structures are formed under irradiating visible light. In addition, reversible particle shape transformation between sphere and ellipsoid is achieved by a chloroform vapor annealing with UV/visible light irradiation. We expect that these reversibly light-responsive BCP particle can be applied to a lot of field such as sensor, display. |
| 저자 |
김진우1, 윤홍석1, 구강희2, 이영준1, 이준혁3, Kin Liao4, 김범준1
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| 소속 |
1KAIST, 2MIT, 3한국생산기술(연), 4Khalifa Univ. |
| 키워드 |
자극반응성; 빛 반응성; 고분자 입자; 가역적 모양 변화; Spiropyran;
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| E-Mail |
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