In Situ Synthesis of Polybenzimidazole on the Surface of Single Wall Carbon Nanotubes |
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| Authors: | Yanhua Lu Haixia Cui Huidi Zhou |
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| Institution: | 1. State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences , Lanzhou, China;2. Graduate University of Chinese Academy of Sciences , Beijing, China;3. State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences , Lanzhou, China |
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| Abstract: | Single wall carbon nanotube (SWNT) was carboxylated to introduce –OH, –COOH, and –NH2 on the surfaces, which made it possible for polybenzimidazole (PBI) to be in situ synthesized. The resulting SWNT doped PBI (SWNT/PBI) was characterized by Fourier transform infrared spectroscopy thermogravimetric analysis. The conductivity of membrane casting from PBI/N,N-dimethylacetamide (DMAc) and SWNT/PBI/DMAc solution was also investigated. Owing to the incorporation of SWNT, the SWNT/PBI membranes achieve a maximum conductivity of 3.70 × 10?4 Ω.cm?1 at 200°C. |
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| Keywords: | Conductivity dispersibility polybenzimidazole single wall carbon nanotubes |
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