Abstract:

The polyaniline doped with different concentrations of dodecylbenzene sulfonic acid (PANI-DBSA) was added to the polyacylonitrile(PAN) electrospinning solution to decrease the diameter of the resulting nanofibers. The compatibility of the blends was investigated, and the effects of the mass concentration of DBSA on the conductivity of the spinning solution, the diameter and diameter distribution of the nanofibers were analyzed. It is shown that the hydrogen bonding between the carbonyl groups in PAN copolymer and the imines groups in PANI-DBSA makes the blends have good compatibility. Increasing the DBSA mass concentration increases the solution conductivity, but decreases the diameter of fiber and the fiber’s discrete coefficient. The finest fiber diameter is 116 nm when the mass concentration of the DBSA is 1.1mol/L.