| 학회 |
한국고분자학회 |
| 학술대회 |
2008년 봄 (04/10 ~ 04/11, 컨벤션 뷰로(대전)) |
| 권호 |
33권 1호 |
| 발표분야 |
고분자 구조 및 물성 |
| 제목 |
Control of Phase Behavior of Nano-structured Block Copolymer by using Homopolymers |
| 초록 |
The phase diagrams for mixtures consisting of symmetric polystyrene-block-poly (n-pentyl methacrylate) copolymer (PS-PnPMA) and PS (or PnPMA) homopolymers with various molecular weights are presented. The lower disordered-ordered transition (LDOT) and upper ordered-disordered transition (UODT) temperatures of mixtures were determined by polarized optical microscopy, depolarized light scattering and small angle x-ray scattering. The LDOT decreases but UODT increases with increasing amount of PS. Microdomains of the mixtures were examined by transmission electronic microscopy. It was investigated that the nano-structure of block copolymer changed as different homopolymer molecular weight and weight fraction. |
| 저자 |
김은영1, 김진곤2
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| 소속 |
1포항공과대, 2화학공학과 |
| 키워드 |
Phase behavior; closed-loop phase behavior; lower disordered-ordered transition (LDOT); upper ordered-disordered transition (UODT)
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| E-Mail |
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