| 학회 |
한국고분자학회 |
| 학술대회 |
2018년 가을 (10/10 ~ 10/12, 경주컨벤션센터) |
| 권호 |
43권 2호 |
| 발표분야 |
고분자구조 및 물성: 극한물성소재 |
| 제목 |
Effect of architecture on the phase separation characteristics of PS-b-PLA block copolymer |
| 초록 |
Block copolymer (BCPs) are widely used in materials science due to their unique ability to be self-assembled into various nanostructures. Recent advances in BCPs focused on the development of new systems that can overcome the size limitation of traditional BCPs. Such efforts have been demonstrated with design and synthesis of new type of BCPs having high interaction parameter (χ). Although many previous studies have been mainly focused on linear BCPs, it was also suggested that nonlinear architecture such as star BCPs can further promote the phase segregation. Herein we synthesized well-defined miktoarm PS-b-PLA BCPs to compare the segregation behavior with linear PS-b-PLA BCPs having similar molecular weights and volume fraction. As a control sample, linear PS-b-PLA BCPs of similar volumetric ratio were synthesized. The samples were thermally annealed in thin film and bulk state, and characterized with SEM, TEM, and SAXS. The phase behaviors were also compared with SCFT simulation. |
| 저자 |
김기현, 왕현석, 박지훈, Anzar Khan, 허준, 방준하
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| 소속 |
고려대 |
| 키워드 |
block copolymer; PS-b-PLA; phase behavior
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| E-Mail |
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