In this paper, the morphology, structure and properties of electrospun Polysulfonamide (PSA)/multi-walled carbon nanotubes (MWCNTs) fibers are investigated systematically. The experimental results indicate that the diameter of electrospun PSA fiber increased by the blending of MWCNTs while its crystallinity decreased. Both the conductivity and mechanical properties of PSA/MWCNT fibers were improved by the blending of MWCNTs at a concentration below 5% MWCNT. The thermal behavior of the electrospun fibers was influenced by the MWCNT concentrations through the Thermogravimetric Analysis (TGA). The new developed PSA/MWCNTs composite nanofiber has excellent thermal stability and mechanical properties compared with the usual PSA fibers.
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