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Polymer conformation-assisted wrapping of single-walled carbon nanotube: The impact of cis-vinylene linkage

Polymer conformation-assisted wrapping of single-walled carbon nanotube: The impact of cis-vinylene linkage,10.1016/j.polymer.2009.11.052,Polymer,Wenh

Polymer conformation-assisted wrapping of single-walled carbon nanotube: The impact of cis-vinylene linkage   (Citations: 2)
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A soluble π-conjugated polymer cis-PmPV is found to be twice as effective as its trans-PmPV isomer in dispersing SWNTs into organic solvents. The improved efficiency is related to the specific conformation of cis-vinylene-enriched PmPV, which facilitates a planar π–π interaction with SWNT surface and leads to improved nanotube dispersion. 1H NMR spectra indicate that the cis-CHCH bonds are partially converted to the trans-CHCH, thereby providing necessary conformational cavity for SWNT wrapping. Irradiation triggers a precipitation from SWNT dispersion, providing a purified SWNT/conjugated polymer composite.
Journal: Polymer , vol. 51, no. 2, pp. 475-481, 2010
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