| 학회 |
한국고분자학회 |
| 학술대회 |
2018년 봄 (04/04 ~ 04/06, 대전컨벤션센터) |
| 권호 |
43권 1호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
Swelling-Induced Pore Generation in Fluorinated Polynorbornene Block Copolymer Films |
| 초록 |
Swelling-induced pore generation is a facile, non-destructive method to prepare mesoporous polymer films. The fundamental principle behind the method is based on the selective swelling and shrinkage of a block within the microphase-separated block copolymer (BCP) films. To date, materials used in this emerging pore generation method are exclusively limited to polystyrene-based amphiphilic BCPs. Herein, we report the swelling-induced pore generation of highly fluorinated, polynorbornene-based BCP films. It is revealed that the fluorinated BCPs form nanoparticle during their polymerization due to low solubility of the fluorinated block. Their spun-cast films show the microphase-separated structures, which undergo the swelling-induced pore generation when treated with fluorous solvent. By varying the degree of polymerization of the fluorinated block, not only the size and density of pores within the films, but also the refractive indices of the thin films can be tuned in a wide range. |
| 저자 |
조윤식1, 김영진1, 최태림1, 임지우2, 차국헌1
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| 소속 |
1서울대, 2경희대 |
| 키워드 |
Fluorinated Block Copolymer; ROmP; Solvent Swelling; Refractive Index Control
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| E-Mail |
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