| 학회 |
한국고분자학회 |
| 학술대회 |
2013년 봄 (04/11 ~ 04/12, 대전컨벤션센터) |
| 권호 |
38권 1호 |
| 발표분야 |
대학원생 구두발표(발표10분) |
| 제목 |
Morphology of Star-shaped Block Copolymer Comprised of Different Morphology of Linear Block Copolymer |
| 초록 |
Star-shaped polystyrene-block-poly(methyl methacrylate) copolymer (PS-b-PMMA) was synthesized by using α-cyclodextrin (α-CD) as a core of the star-shape. Hydroxyl groups in the α-CD were substituted with bromine by esterification and it was used for atom transfer radical polymerization. We found that the number of bromine substituted arms per one α-CD was higher than 16 measured by nuclear magnetic resonance and Matrix-assisted laser desorption/ionization. We controlled the molecular weight and block compositions of block copolymer. We could observe that range of nanostructures of Star-shaped block copolymers was different from that of linear block copolymer. Also, we cut Star-shaped block copolymers by hydrolysis of ester group linking cyclodextrin and linear block copolymer. We could observe that morphology of cut linear block copolymer was different from Star-shaped block copolymer. |
| 저자 |
장상신, 김진곤, 문홍철, 배두식, 곽종헌
|
| 소속 |
POSTECH |
| 키워드 |
star-shaped block copolymer |
| E-Mail |
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