| 학회 |
한국고분자학회 |
| 학술대회 |
2019년 봄 (04/10 ~ 04/12, 부산컨벤션센터(BEXCO)) |
| 권호 |
44권 1호 |
| 발표분야 |
고분자구조 및 물성 |
| 제목 |
Shape Controlled, Monodisperse Block Copolymer Particles through Particle Restructuring by Solvent Engineering |
| 초록 |
Non-spherical colloidal particles of block copolymer (BCP) are important class of materials. Here, we introduce a re-shaping strategy using solvent vapor annealing (SVA) to transform the size controlled, monodisperse BCP spheres into shape-anisotropic particles to demonstrate their potential to control both internal morphology and overall particle shape. BCP spheres in a wide range of particle size were first produced using Shirasu Porous Glass (SPG) membrane emulsification. Then, successful transformation to non-spherical shapes was conducted using SVA. This approach was applicable to various types of BCPs including polystyrene-block-poly(1,4-butadiene) (PS-b-PB), polystyrene-block-polydimethylsiloxane (PS-b-PDMS), polystyrene-block-poly(4-vinylpyridine) (PS-b-P4VP) which allows control over aspect ratio (AR). Furthermore, versatility of SVA on particle shape was demonstrated by successfully transforming BCP spheres into various shapes such as prolate and oblate ellipsoids. |
| 저자 |
이영준1, 신재만1, 구강희1, 이준혁1, Kin Liao2, 김범준1
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| 소속 |
1KAIST, 2Khalifa Univ. |
| 키워드 |
Block copolymer; BCP particle; Solvent vapor annealing; monodisperse
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| E-Mail |
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