Abstract
Dispersions of single-walled carbon nanotubes (SWCNTs) in organic solutions containing poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene] (MEH-PPV) were studied by Raman spectroscopy, UV-vis-NIR spectroscopy, and electron microscopy. This polymer interacts with the nanotube resulting in the appearance of a new red-shifted absorption band in the electronic spectrum. This indicates the formation of a charge-transfer complex between MEH-PPV and SWCNTs. Additives of MEH-PPV make it possible to achieve stable suspensions of nanotubes in styrene. A polystyrene/SWCNT/MEH-PPV composite with a high degree of bundle splitting was obtained by polymerization. It was shown that the luminescence intensity of the nanotubes in the Raman spectrum can serve as a indicator for the estimation of the degree of splitting of SWCNT bundles in the composite.
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Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 10, pp. 2245–2250, October, 2013.
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Ryabenko, A.G., Dzhavadyan, E.A., Komarov, B.A. et al. Application of poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene] for splitting of single-walled carbon nanotube bundles in polystyrene/SWCNT composite. Russ Chem Bull 62, 2245–2250 (2013). https://doi.org/10.1007/s11172-013-0324-6
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DOI: https://doi.org/10.1007/s11172-013-0324-6