| 학회 |
한국고분자학회 |
| 학술대회 |
2005년 봄 (04/14 ~ 04/15, 전경련회관) |
| 권호 |
30권 1호, p.58 |
| 발표분야 |
고분자 구조 및 물성 |
| 제목 |
The Order-to-Disorder Transition of A Symmetric Polystyrene-block-Poly(2-vinyl pyridine) Copolymers with Cadmium Chloride |
| 초록 |
The order-to-disorder transition (ODT) and lamellar spacing of a symmetric polystyrene-block-poly(2-vinyl pyridine) (PS-P2VP) copolymer with various amounts of cadmium chloride (CdCl2) was investigated by rheometry, synchrotron small angle X-ray scattering, and transmission electron microscopy. PS-P2VP was synthesized by anionic polymerization. The CdCl2 can coordinate with the nitrogen in P2VP. Even though the amount of CdCl2 was very small (less than 0.01 vol%), the TODT of PS-P2VP coordinated with CdCl2 increased drastically. For instance, the TODT of a PS-PVP having volume fraction of CdCl2 of just 0.023 (thus, the molar ratio of [CdCl2]/[P2VP] = 0.01) increased as large as 10 oC compared with that of neat PS-P2VP. Furthermore, the lamellar domain spacing of this sample significantly increased. |
| 저자 |
이동현1, 류두열2, 김진곤3
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| 소속 |
1포항공과대, 2Department of Polymer Science and Engineering, 3Univ. of Mesachusetts |
| 키워드 |
polystyrene-block-poly(2-vinyl pyridine); order-to-disorder transitiong; upper critical ordering transition and Cadmium Chloride
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| E-Mail |
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