| 학회 |
한국고분자학회 |
| 학술대회 |
2018년 가을 (10/10 ~ 10/12, 경주컨벤션센터) |
| 권호 |
43권 2호 |
| 발표분야 |
고분자가공/복합재료 |
| 제목 |
Effect of Flory-Huggins Interaction Parameter on the Aspect Ratio of Shape-Anisotropic Block Copolymer Particle |
| 초록 |
Systematic modulation of shape-anisotropy of block copolymer (BCP) spheroids (prolate and oblate) have received great attention. Herein, we investigate the effect of Flory-Huggins interaction parameter (χ) on the aspect ratio (AR) of the spheroids by investigating four different series of BCPs with varying χ values. In this study, polystyrene-b-polybutadiene (PS-b-PB), polystyrene-b-polydimethylsiloxane (PS-b-PDMS), polystyrene-b-poly4-vinylpyridine (PS-b-P4VP), and polydimethylsiloxane-b-poly-4-vinylpyridine (PDMS-b-P4VP) with similar degree of polymerization (N) were prepared for accurate comparison. Lamellae-forming BCPs with higher χ assembled into more elongated prolate particles with greater AR. Similarly, cylinder-forming BCPs with higher χ assembled into flatter oblate particles. Although AR increases with χ for both lamellae- and cylinder-forming BCPs, a difference in the increasing tendency of AR depending on the shape (prolate or oblate) of BCP particles was observed. |
| 저자 |
이영준1, 구강희2, 신재만2, 이준혁2, Kin Liao3, 김범준2
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| 소속 |
1KAIST, 2카이스트, 3Khalifa Univ. |
| 키워드 |
Block copolymer; Block copolymer particle; Anisotropic particle; Flory-Huggins interaction parameter
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| E-Mail |
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