| 학회 |
한국고분자학회 |
| 학술대회 |
2004년 봄 (04/09 ~ 04/10, 고려대학교) |
| 권호 |
29권 1호, p.59 |
| 발표분야 |
고분자 구조 및 물성 |
| 제목 |
Structure Parameters and Crystallization Kinetics of Ethylene Copolymers |
| 초록 |
We studied the structural variations and crystallization kinetics of ethylene copolymers as a function of the branch type and contents by carrying out time- dependent small angle x-ray scattering (SAXS) and wide angle x-ray scattering (WAXS). Our experimental results show that during the isothermal crystallization, the copolymer samples show almost the same coherence length of lamella and lamellar thickness which do not change with time, while the lamellar thickness increases with time for the homopolymer. On the other hand, the noncrystalline layer thickness does not show definite values for copolymers whereas the homopolymer shows well-defined values that do not change with time. Moreover, WAXS and SAXS results suggest that structural properties and crystallization kinetics do not change with the comonomer types (ethyl vs. hexyl branches). |
| 저자 |
조태연1, 정영석1, 윤도영1, B. Heck2, G. Strobl3, L. Mandelkern4
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| 소속 |
1서울대, 2Dept. of Physics, 3Albert- Ludwigs-Univ., 4Freiburg |
| 키워드 |
structure parameters; crystallization kinetics; SAXS; WAXS
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| E-Mail |
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