| 학회 |
한국고분자학회 |
| 학술대회 |
2017년 봄 (04/05 ~ 04/07, 대전컨벤션센터) |
| 권호 |
42권 1호 |
| 발표분야 |
고분자구조 및 물성 |
| 제목 |
Tunable Optical Properties Based on the In Situ Nanoparticlization of Polynorbornene Block Copolymers |
| 초록 |
The use of controlled polymerization technique allowed the precise control over the composition of block copolymers (BCP) obtained by simply altering the monomer feed ratio. We have prepared BCPs containing either high sulfur or fluorine content through one-pot and mild ring-opening metathesis polymerization (ROMP). The low solubility of sulfur- and fluorine-rich blocks led to the in situ formation of BCP nanoparticles during the polymerization. The variation of the degree of polymerization of constituent blocks yielded different nanostructures such as rods and vesicles without post-polymerization modification processes. Furthermore, spun-cast films from the BCP micelles undergo selective swelling of the fluorinated blocks when treated with a fluorous solvent, yielding porous thin films with controlled pore morphology. Such control over the sulfur or fluorine content within BCP thin films led to the fine tuning of refractive indices over a wide range. |
| 저자 |
차국헌 |
| 소속 |
서울대 |
| 키워드 |
Fluoropolymers; Block Copolymers; ROMP; Self-Assembly
|
| E-Mail |
|
