| 학회 |
한국고분자학회 |
| 학술대회 |
2011년 가을 (10/06 ~ 10/07, 김대중 컨벤션센터) |
| 권호 |
36권 2호 |
| 발표분야 |
고분자 구조 및 분석－Scattering & Spectroscopy |
| 제목 |
Studies on Structures of Polymethacrylate Diblock Copolymer Bearing POSS Moieties using Synchrotron X-ray Scattering |
| 초록 |
We studied the temperature-dependent morphological behavior of diblock copolymer of methyl methacrylate and polyhedral oligomeric silsesquioxane (POSS) functionalized methacrylate (PMMA-b-PMAPOSS) using synchrotron grazing incidence small and wide-angle X-ray scattering (GISAXS and GIWAXS), and differential scanning calorimetry (DSC). The quantitative GISAXS and GIWAXS analysis showed that both the PMMA cylinders and the PMAPOSS matrix are induced from solvent-annealing copolymer films. The post thermal annealing process induces aggregation of the POSS moieties, which results in the formation of crystals with an orthorhombic lattice unit cell. In addition, the molecular PMAPOSS cylinders in helical conformations are aligned in the film plane. The crystals were found to melt above 190 ℃ during heating and subsequent cooling. In contrast, the hexagonally packed structure of the PMMA was found to be retained during the heating and the subsequent cooling. |
| 저자 |
김영용1, 이문호1, 진상우1, 안병철1, 노예철1, 김광우1, 함석규1, 김동민1, 김진철1, 권원상1, 정정운1, 김경태1, 김미희1, 고용기1, 정성민1, 권경호1, Tomoyasu Hirai2, Masa-aki Kakimoto2, Padma Gopalan3, Teruaki Hayakawa2
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| 소속 |
1포항공과대, 2Tokyo Institute of Technology, 3Univ. of Wisconsin-Masdison |
| 키워드 |
GISAX; GIWAX; PMMA; PMAPOSS
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| E-Mail |
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