An EPR investigation of electrospun polyaniline-polyethylene oxide blends

Abstract

The EPR magnetic susceptibility behavior of the camphorsulfonic acid doped polyaniline (PANCSA) blends with polyethylene oxide (PEO) is reported in fibers and films. In particular, EPR investigations on electrospun (PANCSA)0.72(PEO)0.28 nanofibers, cast films of (PANCSA)0.72(PEO)0.28 and cast films of (PANCSA) were performed to investigate differences in the mesoscopic disorder as induced by the process of electrospinning. The changes observed in the Pauli susceptibility, EPR lineshape, EPR linewidth, and dc conductivity are interpreted as due to increased chain alignment in the fibers compared with the cast films.

Document Type

Article

DOI

https://doi.org/10.1016/s0379-6779(03)00370-9

Keywords

polyaniline, electron paramagnetic resonance, electrospinning, blends, magnetic susceptibility, nanofibers

Publication Date

2004

Journal Title

Synthetic metals

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