| 학회 |
한국고분자학회 |
| 학술대회 |
2017년 가을 (10/11 ~ 10/13, 제주컨벤션센터) |
| 권호 |
42권 2호 |
| 발표분야 |
고분자구조 및 물성 |
| 제목 |
Highly Asymmetric Core-shell Gyroid Structures in Block Copolymer Blends |
| 초록 |
Block copolymers' self-assembly provide approach to the manufacturing of various ordered phases. Among those morphologies, gyroid structures are very important because of their co-continuous and network structures. However, a block copolymer shows gyroid structures only at ~65% volume fraction of matrix block. Also, ABC triblock terpolymers and their blend systems exhibit gyroid structures only when the volume fraction of the largest block is about 40~60%. In this study, we designed ABC/AB blend system. This blend shows core-shell gyroid structures at 80% volume fraction of the largest block. B (polystyrene) is the thick shell, A (polyisoprene) is the thin core part, and C (poly(2-vinyl pridine)) is the thin matrix. Those block copolymers were characterized by gel permeation chromatography and nuclear magnetic resonance. Morphologies of neat block copolymers and blends were characterized by TEM and SAXS. We analyzed the gyroid structure by TEM & SAXS simulation. |
| 저자 |
안성현, 곽종헌, 최청룡, 서예성, 박승규, 김진곤
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| 소속 |
포항공과대 |
| 키워드 |
block copolymer; terpolymer; self-assembly; core-shell gyroid
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| E-Mail |
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