화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2008년 가을 (10/09 ~ 10/10, 일산킨텍스)
권호 33권 2호
발표분야 고분자 가공/복합재료
제목 Functionalization of 3,4-Diaminobenzoic Acid onto the Surface of Carbon Nanotube in Polyphosphoric acid/Phosphorous Pentoxide Medium
초록 The reaction medium, polyphosphoric acid (PPA)/phosphourus pentoxide (P2O5) was strong enough to facilitate functionalization onto carbon nanomaterials. The key component on the reaction medium was a mild PPA. Its acidic nature was to protonate carbon nanomaterials, but it was benign enough to be less-destructive. The reaction medium was used to modify carbon nanotube as a model compound to trace redaction mechanism from the analysis of functionalized adducts. 3,4-Diaminobenzoic acid was functionalized in the presence of single-walled carbon nanotubes (SWNTs) or multi-walled carbon nanotubes (MWNTs) via Friedel-Crafts acylation in polyphophoric acid (PPA)/phosphorous pentoxide (P2O5). After confirmation of the functionalization, 3,4-diaminobenzoyl-functionalized MWNTs will be used for the grafting of polybenzimidazole (PBI). Thus, the resultant functionalized MWNTs were characterized with EA, FT-IR, TGA, and SEM.
저자 강지예1, 어수미1, Loon-Seng Tan2, 백종범3
소속 1충북대, 2US Air Force Research Lab, 3Ulsan National Institute of Science and Technology
키워드 ABPBI; Carbon nanotube
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