| 학회 |
한국고분자학회 |
| 학술대회 |
2019년 가을 (10/09 ~ 10/11, 제주컨벤션센터) |
| 권호 |
44권 2호 |
| 발표분야 |
고분자구조 및 물성 |
| 제목 |
The Frank-Kasper Phase Analysis of High Conformationally Asymmetric Block Copolymers Self-assembly |
| 초록 |
To investigate the Frank–Kasper phases from block copolymers (BCPs) self-assembly, we designed high conformational asymmetry (ε) and low‒Tg BCPs consisting of the soft siloxane in majority and rigid fluorine-containing acrylate to reduce the rapid equilibrium of nanostructures at lower temperatures. A series of compositionally and conformationally asymmetric polydimethylsiloxane-b-poly(2,2,2-triflouroethyl acrylate)s (PDMS-b-PTFEAs) were synthesized via atom transfer radical polymerization. The Frank–Kasper σ and C14 phases were observed at fPDMS = 0.80 and 0.85 respectively, using small-angle X-ray scattering. Interestingly, the σ phase develops after short-range liquid-like packing (LLP) state and hexagonally packed cylinder during heating, whereas the C14 phase emerges at room temperature, which are both followed by disordering at higher temperatures. |
| 저자 |
전승배1, 전태석1, 조성준1, 안형주2, 이승우3, 이병두4, 류두열1
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| 소속 |
1연세대, 2포항가속기, 3고려대, 4Argonne National Laboratory |
| 키워드 |
Frank-Kasper phases; block copolymers; conformational asymmetry
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| E-Mail |
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