| 학회 |
한국고분자학회 |
| 학술대회 |
2008년 봄 (04/10 ~ 04/11, 컨벤션 뷰로(대전)) |
| 권호 |
33권 1호 |
| 발표분야 |
고분자 구조 및 물성 |
| 제목 |
Effects of Nano-Structures on the Extensional Viscosity and Orientation of the Block Copolymers |
| 초록 |
Elongation deformation was conducted on a polystyrene-block-polyisoprene-block-polystyrene (SIS) triblock copolymer which contains cylindrical microdomains composed of polystyrene block chains in matrix of polyisoprene block chains. The extensional flow behavior of this deformation triblock copolymer melt, which exhibits a cylindrical phase, has been examined by using elongational deformation with strain rates εo between 0.1 and 1.0 s-1 at different temperatures. The structures related to various condition of elongational flow deformation has been determined from SAXS patterns by considering separately changes in the single particle scattering, which influence the scattering patterns. The TEM and SAXS data of the samples show that the cylindrical PS-domain was deformed along the direction of elongation. It also shows that the cylindrical microdomains are micronecked and deformed with various strain rates. |
| 저자 |
김은영1, 이원기2
|
| 소속 |
1포항공과대, 2화학공학과 |
| 키워드 |
Elongational deformation; triblock copolymer; microdomains
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| E-Mail |
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