| 학회 |
한국고분자학회 |
| 학술대회 |
2011년 가을 (10/06 ~ 10/07, 김대중 컨벤션센터) |
| 권호 |
36권 2호 |
| 발표분야 |
대학원생 구두발표 |
| 제목 |
Hierarchical Nanostructures in Thin Films of Block Copolymer bearing POSS moieties |
| 초록 |
An interesting organic-inorganic diblock copolymer, poly(styrene-b-methacrylate grafted with polyhedral oligomeric silsesquioxane) (PS-b-PMAPOSS). The morphological structures in nanoscale thin films of PS-b-PMAPOSS were investigated by performing grazing incidence X-ray scattering (GIXS). GIXS formula based on structural models were derived for the quantitative analysis of the scattering data. The quantitative analysis found that the diblock copolymer molecules in the thin films undergo phase separation, which generates a lamellar structure. Surprisingly, this lamellar structure is completely oriented in the out-of-plane of the film and is stable up to the degradation temperature. The PMAPOSS layers in the lamellar structure were found to consist of two sub-layers, namely a densely ordered layer and a less ordered layer which show diffrent crystallinity. In both the sub-layers, the PMAPOSS block chains have helical conformations and thus are present as molecular cylinders. |
| 저자 |
안병철1, 이문호1, Tomoyasu Hirai2, 진상우3, 노예철1, 김경태1, 정성민1, 김영용1, 김광우4, 정정운1, 김미희1, 권원상1, 고용기1, 김진철1, 권경호1, Masa-aki Kakimoto2, Teruaki Hayakawa2
|
| 소속 |
1포항공대, 2Tokyo Institute of Technology, 3Toray, 4Pohang Accelerator Laboratory |
| 키워드 |
block copolymer; thin film; grazing incidence x-ray scattering; POSS; hierarchical structure;
|
| E-Mail |
|
