| 학회 |
한국고분자학회 |
| 학술대회 |
2018년 가을 (10/10 ~ 10/12, 경주컨벤션센터) |
| 권호 |
43권 2호 |
| 발표분야 |
여성연구자 특별 심포지움 (일반구두발표(Post-Doc., 발표 20분) 및 대학원생 구두발표(발표 15분)만 신청 가능)* |
| 제목 |
Understanding Shape Transition of Block Copolymer Particles by Controlled Assembly of Nanorod Surfactants and Block Copolymers |
| 초록 |
We demonstrate the impact of the length-controlled NRs on manipulating the interfacial properties of BCP emulsions to produce anisotropic BCP particles. A series of lamellae- and cylinder-forming PS-b-P4VP and length-controlled NRs were co-assembled, and selective arrangement of NRs on the P4VP domain at the particle surface enabled the production of anisotropic particles. In particular, the ratio of the NR length to the size of the NR-hosting domain (l/L) was the key parameter in determining the location of the NRs in the BCP particles as well as their final particle shape. The oblate particles were generated in the range of 0.36 ≤ l/L ≤ 0.96, whereas the prolate particles were produced for much wider range of l/L ≥ 0.83 without upper limit. Furthermore, quantitative calculation of the free energy at the particle interface and DPD simulation were carried out to theoretically support the l/L-dependent shape transition of BCP particles. |
| 저자 |
구강희1, 유지호2, 윤홍석1, 신재만1, 장세규3, 이원보2, 김범준1
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| 소속 |
1KAIST, 2서울대, 3KIST |
| 키워드 |
nanorod surfactant; block copolymer; particle shape; anisotropic polymer particle; composite particle
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| E-Mail |
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