| 학회 |
한국고분자학회 |
| 학술대회 |
2019년 봄 (04/10 ~ 04/12, 부산컨벤션센터(BEXCO)) |
| 권호 |
44권 1호 |
| 발표분야 |
고분자구조 및 물성 |
| 제목 |
Shape Control of Monodispersed Cone-Shaped Particles by Tuning Blend Structure of Diblock Copolymer and Random Copolymer within Emulsion |
| 초록 |
Block copolymers (BCPs) in colloidal confinements can provide an effective route to produce non-spherical particles. Here, we exploit the blend of poly(styrene-block-1,4-butadiene) (PS-b-PB) BCP and poly(methylmethacrylate-random-(4-acryloylbenzophenone)) (P(MMA-r-4ABP)) random copolymer (rCP) within the emulsion droplet to develop various particles with different symmetry. The particle shape can be tuned sequentially from striped ellipsoid to Janus-sphere, to cone-shaped by increasing the mole fraction of 4ABP in rCPs (ɸ4ABP). These particles were produced by membrane emulsification to have monodisperse size and shape. Therefore, the shape-anisotropy of monodispersed cone-shaped particles can be precisely tuned, which is supported by quantitative calculation for the particle shape based on the modified theoretical model. The importance of the shape control of the monodispersed cone-shaped particles was demonstrated by investigating the colloidal coating property of these particles. |
| 저자 |
김은지1, 신재만1, 김용주1, 구강희1, Kin Liao2, 김범준1
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| 소속 |
1KAIST, 2Khalifa Univ. |
| 키워드 |
cone-shape particles; block copolymers; Janus particles; particle shape control; shape analysis
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| E-Mail |
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