dc.citation.conferencePlace |
US |
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dc.citation.conferencePlace |
Boston |
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dc.citation.endPage |
106 |
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dc.citation.startPage |
101 |
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dc.citation.title |
MRS 2009 Fall Meeting |
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dc.citation.volume |
1203 |
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dc.contributor.author |
Lim J.-K. |
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dc.contributor.author |
Baek, Jong-Beom |
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dc.date.accessioned |
2023-12-20T04:06:16Z |
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dc.date.available |
2023-12-20T04:06:16Z |
- |
dc.date.created |
2013-06-21 |
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dc.date.issued |
2009-11-30 |
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dc.description.abstract |
Purification of diamond nanopowder (DNP) was conducted in a less-destructive mild polyphosphoric acid (PPA)/phosphorous pentoxide (P 2O 5). The wide-angle X-ray diffraction (XRD) showed that the intensity of the characteristic diamond af-spacing (111) at 2.07 A from purified DNP (PDNP) was fairly increased compared to pristine DNP, indicating that significant amount of carbonaceous impurities were removed. Chemical modification of pristine DNP and PDNP with 4-ethylbenzoic acid was carried out to afford 4-ethylbenzoyl-functionalized DNP (EBA-g-DNP) and PDNP (EBA-g-PDNP). The morphologies of EBA-g-DNP and EBA-g-PDNP from scanning electron microscopy (SEM) were further affirmed the feasibility of chemical modification. The results suggested that the reaction condition was indeed viable for the one-pot purification and functionalization of DNP. The resultant functionalized DNP could be useful for nanoscale additives. Hence, EBA-g-DNP and EBA-g-PDNP was brominated by using N-bromosuccinimide (NBS). The resultant a-brominated DNP and PDNP could be used as initiator for the atom transfer radical polymerization (ATRP) to introduce many polymers onto the surface of functionalized DNP and PDNP. |
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dc.identifier.bibliographicCitation |
MRS 2009 Fall Meeting, v.1203, pp.101 - 106 |
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dc.identifier.isbn |
978-160511176-6 |
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dc.identifier.issn |
0272-9172 |
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dc.identifier.scopusid |
2-s2.0-77958462882 |
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dc.identifier.uri |
https://scholarworks.unist.ac.kr/handle/201301/47167 |
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dc.language |
영어 |
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dc.publisher |
Materials Research Society |
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dc.title |
Purification and functionalization of diamond nanopowders |
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dc.type |
Conference Paper |
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dc.date.conferenceDate |
2009-11-30 |
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