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Purification of boron nitride nanotubes by functionalization and removal of poly(4-vinylpyridine)
- Authors
- Lee, Soul-Hee; Kang, Minsung; Lim, Hongjin; Moon, Se Youn; Kim, Myung Jong; Jang, Se Gyu; Lee, Hyo Joong; Cho, Hyunjin; Ahn, Seokhoon
- Issue Date
- 30-Jul-2021
- Publisher
- ELSEVIER
- Keywords
- Acid-base reaction; BNNT; Poly(4-vinylpyridine); Purification
- Citation
- APPLIED SURFACE SCIENCE, v.555
- Journal Title
- APPLIED SURFACE SCIENCE
- Volume
- 555
- ISSN
- 0169-4332
- Abstract
- BNNTs were functionalized by using a polymer that includes a pyridine group, which can undergo dipole interactions with boron atoms in BNNTs. The functionalized BNNTs were well-dispersed in an alcohol solvent, whereas hexagonal boron nitride impurities precipitated, due presumably to stacked structures. After purification processes, acid was added to a solution that contained functionalized BNNTs to prevent pyridine-boron interactions through stronger acid-base interactions. Thus, the polymer bound to the BNNTs was easily separated, and purified BNNTs could be obtained using a solution process. © 2021
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Related Researcher
- Kim, Myung Jong
- BioNano Technology (Department of Chemistry)