| 학회 |
한국고분자학회 |
| 학술대회 |
2019년 가을 (10/09 ~ 10/11, 제주컨벤션센터) |
| 권호 |
44권 2호 |
| 발표분야 |
대학원생 구두발표 (영어발표, 발표15분) |
| 제목 |
Irreversible physical adsorption of PS-b-PMMA directs the perpendicular orientation of microdomains of PS-b-PMMA thin films of its own |
| 초록 |
Irreversible physical adsorption (abbreviated to physisorption) of polymer chains occurs due to the maximized segmental contacts to impenetrable substrates. Such conformation contributes to overcome the entropy loss at the interface, and the polymer chains remain strongly bound despite being immersed in good solvents. In this study, we take advantage of the physisorption of PS-b-PMMA onto various substrates and found out that the adsorbed layers function as neutral layers towards the overlying PS-b-PMMA films of its own. Here, the compositional randomness of the adsorbed layer is valid when the correlation length of the adsorbed layer is smaller than the domain spacing of PS-b-PMMA films. To summarize, a single block copolymer not only can balance the interfacial interaction by physisorption, but also can direct the microdomains of its own perpendicular to the substrate. |
| 저자 |
이우섭1, 김영식1, 조승연1, 안형주2, 류두열1
|
| 소속 |
1연세대, 2포항가속기(연) |
| 키워드 |
polymer; adsorption; irreversible; block copolymer
|
| E-Mail |
|
