| 학회 |
한국고분자학회 |
| 학술대회 |
2006년 봄 (04/06 ~ 04/07, 일산킨텍스) |
| 권호 |
31권 1호 |
| 발표분야 |
고분자 구조 및 물성 |
| 제목 |
Closed-loop Phase Behavior of Mixture of Block Copolymers and 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 and UODT of PS-PnPMA block and PS homopolymer mixtures are dependent on PS weight fraction. For the mixture of the block and PS homopolymer, LDOT decreases but UODT increases with increasing PS weight fraction. Microdomains inside the closed-loop were examined by transmission electronic microscopy. |
| 저자 |
김은영1, 김진곤1, 류두열2
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| 소속 |
1포항공과대, 2연세대 |
| 키워드 |
closed-loop phase behavior; transition behavior of block copolymer
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| E-Mail |
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