| 학회 |
한국고분자학회 |
| 학술대회 |
2007년 봄 (04/12 ~ 04/13, 제주 ICC) |
| 권호 |
32권 1호 |
| 발표분야 |
고분자 합성 |
| 제목 |
In-Situ Polymerization of Linear and Hyperbranched Poly(ether-ketone) in the Presence of Graphite in a Mild Polyphosphoric Acid |
| 초록 |
In the optimized aromatic electrophilic substitution reaction condition in PPA with an additional P2O5 content we have developed, high molecular weight linear and hyperbranched poly(ether-ketone)s (PEK’s) were prepared in the presence of two types of graphite. On the based of various analysis, it could be assured that almost all polymers were covalently attached to the surface of graphite resulting in linear or hyperbranched poly(ether-ketone)s-grafted-graphite (PEK-g-Graphite) composites. In some cases, the stacks of graphite layers were completely exfoliated and the resultant individual graphite sheet, which was isolated from the stacks by PEK wedges, was rolled into nanoscale carbon tube shape. The result envisions that this would be one of the simplest and cheapest approaches to afford polymer supported nanoscale composites starting from low-cost two-dimensional graphite to high performance one-dimensional nanotube. |
| 저자 |
최은경1, 오세진1, Loon-Seng Tan2, 백종범1
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| 소속 |
1충북대, 2US Air Force Research Lab |
| 키워드 |
Graphite; Poly(ether-ketone); Hyperbranched Polymer
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| E-Mail |
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