| 학회 |
한국고분자학회 |
| 학술대회 |
2015년 가을 (10/06 ~ 10/08, 대구컨벤션센터(EXCO)) |
| 권호 |
40권 2호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
Self-assembly of Brush Polymers |
| 초록 |
Self-assembled structures of brush block copolymers (BrBCPs) with polylactide and polystyrene side chains are studied. The polynorbornene-backbone-based BrBCPs containing approximately equal volume fractions of each block self-assemble into highly ordered lamellae with domain spacing ranging from 20 to 240 nm by varying molecular weight of the backbone in the bulk state. In addition, well-developed lamellar microdomains oriented perpendicular to the substrate are achieved without modification of the underlying substrates, and structures with feature sizes greater than 200 nm are generated due to the reduced degree of chain entanglements of brush BCPs. The domain size increases approximately linearly with backbone length, which indicates an extended conformation of the backbone in the ordered state. The strong segregation theory and Monte Carlo simulation also confirm this near-linear dependence of the domain spacing on backbone length, rationalizing experimental results. |
| 저자 |
Thomas P. Russell1, Robert H. Grubbs2, 박철민3, 정가진1, Benjamin R. Sveinbjornsson2, Weiyin Gu1, 허준4, 홍성우5
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| 소속 |
1Univ. of Massachusetts Amherst, 2California Institute of Technology, 3연세대, 4고려대, 5한국생산기술(연) |
| 키워드 |
brush polymer; solvent annealing; self-assembly
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| E-Mail |
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