Author/Authors :
Ji، نويسنده , , Liwen and Lin، نويسنده , , Zhan and Li، نويسنده , , Ying and Li، نويسنده , , Shuli and Liang، نويسنده , , Yinzheng and Toprakci، نويسنده , , Ozan and Shi، نويسنده , , Quan and Zhang، نويسنده , , Xiangwu، نويسنده ,
Abstract :
Novel core-sheath nanofibers, composed of polyacrylonitrile (PAN) core and polypyrrole (PPy) sheath with clear boundary between them, were fabricated by electrospinning PAN/FeCl3·6H2O bicomponent nanofibers and the subsequent surface-initiated polymerization in a pyrrole-containing solution. By adjusting the concentration of FeCl3·6H2O, the surface morphology of PPy sheath changed from isolated agglomerates or clusters to relatively uniform thin-film structure. Thermal properties of PAN-PPy core-sheath nanofibers were also characterized. Results indicated that the PPy sheath played a role of inhibitor and retarded the complex chemical reactions of PAN during the carbonization process.
