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DC Field | Value | Language |
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dc.citation.endPage | 4480 | - |
dc.citation.number | 13 | - |
dc.citation.startPage | 4474 | - |
dc.citation.title | MACROMOLECULES | - |
dc.citation.volume | 40 | - |
dc.contributor.author | Choi, Ja-Young | - |
dc.contributor.author | Oh, Se-Jin | - |
dc.contributor.author | Lee, Hwa-Jeong | - |
dc.contributor.author | Wang, David H. | - |
dc.contributor.author | Tan, Loon-Seng | - |
dc.contributor.author | Baek, Jong-Beom | - |
dc.date.accessioned | 2023-12-22T09:14:08Z | - |
dc.date.available | 2023-12-22T09:14:08Z | - |
dc.date.created | 2014-09-16 | - |
dc.date.issued | 2007-06 | - |
dc.description.abstract | Trimesic acid and phenyl ether were in-situ polymerized as A3 and B2 monomers, respectively, in the presence of a fixed amount (10 wt %) of multiwalled carbon nanotube (MWNT) to afford hyperbranched poly(ether ketone)s (PEK's)/MWNT nanocomposites. The feed ratios of A3 and B2 monomers vary from 3:2 to 1:2 in the A3 + B2 polycondensations. The polymerization was carried out in a mildly acidic medium, i.e., poly-(phosphoric acid) or PPA, with an optimized amount of phosphorus pentoxide (P2O5) added. The overall evidence based on the data of elemental analysis (EA), thermogravimetric analysis (TGA), Fourier-transform infrared (FT-IR) spectroscopy, and scanning electron microscopy (SEM) implicates that hyperbranched PEK's were attached to the surface of MWNT to form hyperbranched PEK-g-MWNT nanocomposites. Furthermore, MWNT remained structurally intact under the polymerization and workup conditions. Evidently driven by the molecular architecture of globular hyperbranched polymers, the morphology of the nanocomposites resembles "mushroom-like clusters on MWNT stalks". The hyperbranched PEK-g-MWNT nanocomposites were soluble in polar aprotic solvents stemming from numerous carboxylic acids on their surfaces. When some of samples were dispersed in 1 M LiOH aqueous solutions, they formed very stable suspensions. The resulting lithiated nanocomposites are being investigated in the applications such as ion conductivity and energy capacitance. | - |
dc.identifier.bibliographicCitation | MACROMOLECULES, v.40, no.13, pp.4474 - 4480 | - |
dc.identifier.doi | 10.1021/ma0701282 | - |
dc.identifier.issn | 0024-9297 | - |
dc.identifier.scopusid | 2-s2.0-34250744897 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/6042 | - |
dc.identifier.url | http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=34250744897 | - |
dc.identifier.wosid | 000247340700016 | - |
dc.language | 영어 | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | In-situ grafting of hyperbranched poly(ether ketone)s onto multiwalled carbon nanotubes via the A(3)+B-2 approach | - |
dc.type | Article | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordPlus | ETHER PHOSPHINE OXIDE)S | - |
dc.subject.keywordPlus | POLYPHOSPHORIC ACID/P2O5 | - |
dc.subject.keywordPlus | MOLECULAR-WEIGHT | - |
dc.subject.keywordPlus | COMPOSITES | - |
dc.subject.keywordPlus | NANOFIBERS | - |
dc.subject.keywordPlus | DISPERSION | - |
dc.subject.keywordPlus | POLYMER | - |
dc.subject.keywordPlus | ACID | - |
dc.subject.keywordPlus | FUNCTIONALIZATION | - |
dc.subject.keywordPlus | NANOCOMPOSITES | - |
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