| 학회 | 한국고분자학회 |
| 학술대회 | 2005년 가을 (10/13 ~ 10/14, 제주 ICC) |
| 권호 | 30권 2호 |
| 발표분야 | 탄소나노튜브 및 고분자 복합재료 |
| 제목 | Fabrication of Aligned Multi-walled Carbon Nanotubes using Electrospinning |
| 초록 | Since their discovery, carbon nanotubes (CNTs) have been extensively studied because of their outstanding electronic, mechanical, and thermal properties.1-3 However, the solubility of CNTs in ordinary solvents is so poor because of the low surface energy of the outer walls4 and strong intertube van der Waals interactions5, 6 that it is extremely difficult to disperse and manipulate CNTs well. Also, it is very difficult to obtain a uniform MWNT alignment on the substrate for many applications. In this study, poly(D,L-lactide) (PDLLA) grafted multi-walled carbon nanotubes (MWNTs) were prepared by ring-opening polymerization of D,L-lactide using the surface modified MWNT as an initiator. In order to introduce a functional group which can react with D,L-lactide, polyethylene glycol (PEG) was grafted onto the chlorinated MWNTs. To fabricate aligned MWNTs, the mixture of PDLLA grafted MWNTs and homo-PDLLA in DMF were electrospun between the two parallel electrodes on the water. These electrospun fibers were obtained on the silicon wafer., the polymer component was removed by heating or chemical vapor etching to confirm the alignment of MWNT within electrospun fibers. Scheme 1. Synthesis of PDLLA grafted MWNTs. References 1. S. Iijima, Nature, 354, 56-58 (1991) 2. H. Dai, Acc. Chem. Rev., 35, 1035-1044 (2002) 3. A. Hirsch, Angew. Chem., Int. Ed., 41, 1853-1859 (2002) 4. C. A. Dyke, J. M. Tour, Nano Lett., 3, 1215 (2003). 5. R. Bandyopadhyaya, E. Nativ-Roth, O. Regev, R. Yerushalmi-Rozen, Nano Lett., 2, 25 (2005) 6. R. Shvartzman-Cohen, Y. Levi-Kalisman, E. Nativ-Roth, R. Yerushalmi-Rozen, Langmui, 20, 6085 (2005) |
| 저자 | 조성준, 김광석, 진인주 |
| 소속 | 인하대 |
| 키워드 | carbon nanotube; electrospinning |
