| 학회 |
한국고분자학회 |
| 학술대회 |
2003년 봄 (04/11 ~ 04/12, 연세대학교) |
| 권호 |
28권 1호, p.290 |
| 발표분야 |
특별 심포지엄 |
| 제목 |
Formation of Self-assembled Nanostructures from Polymer-grafted Single-Wall Carbon Nanotubes |
| 초록 |
Transmission electron microscopy (TEM) reveals that poly(butadiene) (PB)-grafted SWNTs self-organize in a selective solvent to form a micelle-like core-shell morphology. In this self-assembled nanostructure, a PB core is surrounded by SWNT bundles. A similar core-shell morphology is observed in poly(ethylene glycol) (PEG)-grafted SWNT systems. The tendency of these systems to form micelles originates from the strong association between polymer chains covalently linked to the side-walls of SWNTs. The polymer attachment at the side-walls of the nanotubes was verified by direct visualization of Au (gold) grafting sites on functionalized SWNT in Au-grafted SWNT system. This aggregation behavior resembles the self-assembly of graft copolymers in dilute solution. Our findings open up exciting possibilities for the fabrication of novel self-assembling structures based on nanotubes, and provide a new approach for building a variety of superstructures. Unlike the previous self-assembling materials, this new materials will give high stable and ordered nanostructures, since the mechanical and electronic property of the carbon nanotubes are already well known, based on the previous theoretical and experimental results on the carbon nanotubes.
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| 저자 |
고영관;정대환;윤동기;정희태 |
| 소속 |
한국과학기술원 생명화학공학과;한국과학기술원 생명화학공학과;한국과학기술원 생명화학공학과;한국과학기술원 생명화학공학과 |
| 키워드 |
Self-assembled Nanostructures; SWNT
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| E-Mail |
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