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Aligned electrospun nanofiber poly(lactic acid) mats coated with conductive polyaniline: Anisotropy of electrical conductivity

2019/1/9 9:48:30

author:Al-Jallad, M., and Y. Atassi

journal:Journal Of Electrostatics

volume:96

Conductive mats of polylactic acid/polyaniline PLLA/PANI aligned nanofibers are prepared starting from aligned nanofiber mats of PLLA. The average DC-conductivity of the composite mats is 0.18 +/- 0.02 S. cm(-1) in the parallel direction of fibers and 0.03 +/- 0.004 S. cm(-1) in the perpendicular direction. In comparison with published DC-conductivity values of PANI nanofiber composite or blend mats with PLLA or with other polymers, the current mats exhibit good DC-conductivity values and better anisotropy of electrical conductivity. The study of aging effect on the DC-conductivity reveals an exponential decrease with a characteristic time of tau approximate to 9 weeks. The electrical impedance spectroscopy shows an ohmic and capacitive behavior of the composite mat.

ISSN :0304-3886

DOI :10.1016/j.elstat.2018.10.005

Year:2018

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