| 학회 |
한국고분자학회 |
| 학술대회 |
2015년 봄 (04/08 ~ 04/10, 대전컨벤션센터) |
| 권호 |
40권 1호 |
| 발표분야 |
고분자구조 및 물성 |
| 제목 |
Nano-structural Property and Stability of a Miktoarm Star Polymer in Thin Films |
| 초록 |
The structural features of nanoscale thin films composed of a miktoarm (polystyrene)2-(polyisoprene)2 (PS2-PI2) star polymer were studied for the first time using synchrotron grazing incidence X-ray scattering(GIXS) and X-ray reflectivity(XR) analyses. The annealed thin films formed a horizontally oriented lamellar structure via phase separation. The lamellar structure displayed interesting and unique features not present in the corresponding diblock copolymer thin films. The thick interfacial layers formed by the PS and PI arm components were three times the thicknesses of the corresponding layers in the diblock copolymer films. The interfacial layers further displayed a relatively high degree of thermal expansion. The overall lamellar structure was thermally stable up to temperatures approaching the degradation temperature. These unique structural features could be understood in terms of the rigidity and bulkiness of the confined crowded environment surrounding the arm-jointer. |
| 저자 |
이호열, 정성민, 김종현, 김영용, 김창섭, 권경호, 위동우, 이진석, 송성진, 김용진, 이문호
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| 소속 |
포항공과대 |
| 키워드 |
LAMELLAR STRUCTURES; MIKTOARM STAR POLYMERS; SYNCHROTRON GRAZING INCIDENCE X-RAY SCATTERING; SYNCHROTRON X-RAY REFLECTIVITY
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| E-Mail |
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