期刊
AIP ADVANCES
卷 8, 期 3, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.5026509
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资金
- Industrial Fundamental Technology Development Program - Ministry of Trade, Industry and Energy (MOTIE), Korea [10051440]
- NRF grant - Ministry of Science, ICT & Future Planning (MSIP) [NRF-2015R1A5A1037627]
Highly conductive nanofibers with 1570 S/m were obtained from an electrospun solution of polymer containing multiwalled carbon nanotubes (MWCNTs). Homogeneous dispersion of high concentrations of MWCNTs was achieved by attaching poly(styrenesulfonic acid graft aniline) (PSS-g-ANI), an amphiphilic surfactant, to the MWCNT surface. The hydrophilic sulfonic acid group facilitated the dissolution of PSS-g-ANI-grafted MWCNTs in a polyethylene oxide (PEO) solution up to 6.7 wt% MWCNT. To our knowledge, this is the highest level of MWCNT doping attained in a solution designed for electrospinning. With the incorporation of PSS-g-ANI, the concentration of MWCNTs embedded in the electrospun nanofibers increased. More importantly, the alignment of MWCNTs along the nanofiber axis increased significantly, as confirmed by observed birefringence under crossed polarizers. The combination of higher doping levels and better alignment afforded highly conductive nanofibers suitable for electronic nanodevices. (c) 2018Author(s).
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