| 학회 |
한국고분자학회 |
| 학술대회 |
2006년 봄 (04/06 ~ 04/07, 일산킨텍스) |
| 권호 |
31권 1호 |
| 발표분야 |
고분자 구조 및 물성 |
| 제목 |
Phase transitions of weakly interacting Block copolymer studied Wide angle X-ray scattering and Infrared spectroscopy |
| 초록 |
Recently, we reported that the phase transitions of polystyrene-block-poly(n-pentyl methacrylate) (PS-PnPMA) were also measured by temperature-dependent infrared spectroscopy with two-dimensional correlation spectroscopy. In a disordered state below the lower disordered-to-ordered transition, the intensity of the conformational band at 1255 cm-1 was greater than that at 1274 cm-1, whereas the reverse was found in another disordered state above the upper ordered-to-disordered transition. However, it is not resolved to have the origins of directional interaction at both disordered states. In this study, we studied directional interactions existing in PS-PnPMA by using hetero correlation of temperature-dependent infrared spectroscopy and wide angle X-ray scattering. The results clearly shows that the conformation of the C-C-O group in the PnPMA chain (and thus the directional enthalpic gain) is different in the two disordered states. |
| 저자 |
김혜정1, 정영미2, 류두열3, 김승빈1, 김진곤1
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| 소속 |
1포항공과대, 2강원대, 3연세대 |
| 키워드 |
Phase transitions of Weakly interacting Block copolymer by using both Wide angle X-ray scattering and Infrared Spectroscopy |
| E-Mail |
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