Abstract
A novel precursor, 6FAPB-PMDA type polyimide, was developed to prepare carbon membranes and carbon nanotube (CNT) composite carbon membranes. The thermal stability of precursors was characterized by TGA. The morphology of carbon membrane was observed by SEM. The microstructure was measured by XRD and nitrogen adsorption technique. Results have shown that 6FAPB-PMDA type polyimide is a promising precursor, and the introduction of CNT can obviously modify the thermal stability, as well as the carbon and porous structure of resultant carbon membranes.
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