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Core–Shell Structured Graphene Filled Polyaniline/Poly(methyl methacrylate) Nanofibers by Coaxial Electrospinning

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Core–shell structured Polyaniline/Poly(methyl methacrylate) (PANi/PMMA) nanofibers embedded with 1-pyrenebutanoic acid, succinimidyl ester functionalized graphene (G-PBASE) is produced using coaxial electrospinning. PANi/G-PBASE and PMMA solutions were used as core and shell layer respectively. The as-prepared PANi/G-PBASE/PMMA nanofibers possessed diameters in the range of 420 nm. Moreover, neat PANi/G-PBASE and PANi nanofibers were obtained by solvent etching of PMMA shell, which reduced the fiber diameter to 230 nm. The morphology of the nanofibers was investigated by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The core–shell structure and the existence of graphene sheets in the core layer were confirmed by TEM images and FTIR spectroscopy obtained before and after solvent etching of PMMA. The electrical conductivity of the fibers at room temperature were investigated by fourpoint probe method. The PANi/G-PBASE nanofibers exhibited electrical conductivity as high as of 30.25 S/cm which was 3 times higher than that of neat PANi nanofibers.
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Keywords: COAXIAL ELECTROSPINNING; CONDUCTIVE POLYMER; GRAPHENE; POLYANILINE NANOFIBERS

Document Type: Short Communication

Publication date: February 1, 2016

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  • Nanoscience and Nanotechnology Letters (NNL) is a multidisciplinary peer-reviewed journal consolidating nanoscale research activities in all disciplines of science, engineering and medicine into a single and unique reference source. NNL provides the means for scientists, engineers, medical experts and technocrats to publish original short research articles as communications/letters of important new scientific and technological findings, encompassing the fundamental and applied research in all disciplines of the physical sciences, engineering and medicine.
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