Abstract
Poly(methyl methacrylate) (PMMA) nanocomposites containing well-dispersed multiwalled carbon nanotubes (MWNTs) were prepared via an in-situ bulk polymerization of methyl methacrylate (MMA) in the presence of carbon nanotubes (CNTs). Electrical conductivities of the synthesized PMMA/MWNT nanocomposite films containing 1−5 wt % of MWNT were between 10-4 and 10-2 S/cm. When PMMA/MWNT nanocomposites with the same MWNT concentrations were electrospun in DMF into nanofibrous membrane, the conductivities were reduced to ∼10-10 S/cm, even though dispersion of the MWNTs in the electrospun nanofibers was superior to the conventional polymer composites with carbon nanotubes. The diameter of the electrospun fibers ranged between 120 ± 30 and 710 ± 20 nm. In addition, MWNTs in the electrospun nanofibers were found to be embedded in the polymer matix and to align along the fiber axis.
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