| 학회 |
한국화학공학회 |
| 학술대회 |
2018년 봄 (04/25 ~ 04/27, 창원컨벤션센터) |
| 권호 |
24권 1호, p.6 |
| 발표분야 |
고분자 |
| 제목 |
χN dependence of Composition Fluctuation Inhomogeneity on Transition Behavior of Diblock Copolymers |
| 초록 |
We propose that the thermodynamic segregation power of χN at the order-to-disorder transition ((χN)ODT) is a key parameter on block copolymer (BCP) to influence the composition fluctuation inhomogeneity at ODT, where χ is the Flory-Huggins interaction parameter between two blocks and N is the overall degree of polymerization. For this purpose, a series of symmetric BCPs of polystyrene-b-poly(2-vinlyprydine) (PS-b-P2VP), PS-b-poly(methyl methacrylate) (PS-b-PMMA), and PS-b-poly(n-hexyl methacrylate) (PS-b-PnHMA) with modest molecular weights were prepared to represent the decreasing (χN)ODT order of (χN)PS-b-P2VP ＞(χN)PS-b-PMMA ＞(χN)PS-b-PnHMA. The differential scanning calorimeter (DSC) and small angle x-ray scattering (SAXS) were used to support that the discontinuous changes in local composition profiles at ODTs become more distinct when the fluctuation-induced (χN)ODT of BCPs decreases. |
| 저자 |
전태석1, 이용훈1, 조성준1, 류창열2, 류두열1
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| 소속 |
1연세대, 2Rensselaer Polytechnic Institute Troy |
| 키워드 |
고분자물성 |
| E-Mail |
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| 원문파일 |
초록 보기 |
