| 학회 |
한국고분자학회 |
| 학술대회 |
2018년 가을 (10/10 ~ 10/12, 경주컨벤션센터) |
| 권호 |
43권 2호 |
| 발표분야 |
대학원생 구두발표(발표15분) |
| 제목 |
Domain Structures of Poly(3-dodecylthiophene)-based Block Copolymers Depend on Regioregularity |
| 초록 |
Phase separation of conjugated–amorphous block copolymers (BCPs) is mainly determined by interplay between Flory–Huggins interaction (χ), liquid crystalline (LC) interaction and crystallization. In particular, the strong LC interaction and crystallization can provide morphological richness, but often suppress the formation of ordered domains. Therefore, tuning the LC and crystalline behavior can be a key to form desirable nanostructures of conjugated–amorphous BCPs. Here, we studied morphologies of poly(3-dodecylthiophene)-block-poly(2-vinylpyridine) (P3DDT-b-P2VP) depending on regioregularity (RR), which determines the LC and crystalline behavior of conjugated polymer. Above the melting temperature, we observed a clear transition in domain spacing of ordered structures as the RR decreased from 94% to 85%. This could be attributed to a change in chain-packing configuration due to the reduction in LC interaction. |
| 저자 |
김진성1, 한정훈1, 김영권1, 박현정1, Jonathan P. Coote2, Gila E. Stein3, 김범준2
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| 소속 |
1한국과학기술원, 2Univ. of Tennessee, 3Knoxville |
| 키워드 |
Block copolymer; Rod-Coil; P3DDT; Regioregularity
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| E-Mail |
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