4-Aminobenzoic Acid Functionalized PAN-Base Carbon Fibers in Mild Polyphosphoric Acid/Phosphorous Pentoxide
| Autor: | Xing Xiang Zhang, Yan Mei Jin, Hai Hui Liu, Hua Zhang, Li Chen Hou, Yong Tan |
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| Rok vydání: | 2011 |
| Předmět: |
Materials science
Scanning electron microscope General Engineering Polyacrylonitrile Acylation symbols.namesake chemistry.chemical_compound chemistry symbols Organic chemistry Pentoxide Surface modification Amine gas treating Fourier transform infrared spectroscopy Raman spectroscopy Nuclear chemistry |
| Zdroj: | Advanced Materials Research. :219-222 |
| ISSN: | 1662-8985 |
| Popis: | Pristine polyacrylonitrile (PAN)-base carbon fibers (P-CFs) was functionalized with 4-Aminobenzoic acid via ‘‘direct’’ Friedel-Crafts acylation in a mild reaction medium of polyphosphoric acid (PPA)/phosphorous pentoxid (P2O5). Fourier transform infrared spectroscopy, Raman spectroscopy, Scanning electron microscopy were applied in this study to demonstrate that PAN-base carbon fibers inherently have functional groups on their surface as a result of the reaction. The overall evidence indicates that the 4-Aminobenzoic acid functionalization of carbon fibers can be achieved without oxidation as pre-treatment. Thus, amine functionalized CFs（F-CFs）can be synthesized, without disrupting the strength of the carbon fibers. |
| Databáze: | OpenAIRE |
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