| 학회 |
한국공업화학회 |
| 학술대회 |
2017년 봄 (05/10 ~ 05/12, 광주 김대중컨벤센센터(Kimdaejung Convention Center)) |
| 권호 |
21권 1호 |
| 발표분야 |
고분자 |
| 제목 |
Block Copolymer Colloidal Particles controlled shape, size and uniformity by solvent vapor annealing |
| 초록 |
Block copolymer (BCP) colloidal particles fabricated by polystyrene-block-poly(4-vinylpyridine) (PS-b-P4VP) can show unique particle shape and functionality depending on their molecular weight and volume fraction of each block. However, control of size-dispersity and mass production need to be resolved for future application of these particles. Here, we demonstrate a strategy that enables preparation of monodisperse, non-spherical PS-b-P4VP particles. Size controlled, monodisperse PS-b-P4VP spheres are first produced by SPG membrane emulsification, and subsequent chloroform vapor annealing allowed particle shape transformation into ellipsoids, convex-lens, etc. Finally, observing the time-dependent shape transformation while solvent vapor annealing reveals order-order transition behavior of BCP confined in three-dimension confined geometry. |
| 저자 |
김민구1, 이영준1, 신재만1, 구강희1, Kin LIAO2, 김범준1
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| 소속 |
1한국과학기술원, 2Khalifa Univ. |
| 키워드 |
solvent vapor annealing; PS-b-P4VP; BCP colloidal particles; Shape anisotropic
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| E-Mail |
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