| 학회 |
한국고분자학회 |
| 학술대회 |
2009년 봄 (04/09 ~ 04/10, 대전컨벤션센터) |
| 권호 |
34권 1호 |
| 발표분야 |
고분자 구조 및 물성 |
| 제목 |
Elongation flow-induced morphological change of a diblock copolymer melt of polystyrene and poly(ethylene propylene) |
| 초록 |
The elongational flow-induced alignment process of a lamellar-forming polystyrene-b-poly(ethylene propylene) (SEP) diblock copolymer has been investigated by using elongational flow opto-rheometry (EFOR) and small angle X-ray scattering (SAXS). The initial morphology of the sample was precisely controlled by roll casting and subjected to elongational flow field in the direction either parallel or perpendicular to the layer normal. The elongation experiment was carried out at a slow Hencky strain rate of 0.01 s-1 and 180°C, in order to visualize the precise dynamic process of the morphological change of the lamellar phase at large deformation. The deformation behavior of the cylinder and lamellar phase with the change of morphological characteristics was also compared. |
| 저자 |
이성철, 예새미, 오주현, 김규보, 김민성, 권용구
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| 소속 |
인하대 |
| 키워드 |
Elongational flow; Polystyrene-b-poly(ethylene propylene); Small angle X-ray scattering
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| E-Mail |
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