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

Wenhui Yi; Andrey Malkovskiy; Yongqian Xu; Xiao Qian Wang; Alexei P. Sokolov; Marisabel Lebron-Colon; Michael A. Meador; Yi Pang

doi:10.1016/j.polymer.2009.11.052

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

Wenhui Yi, Andrey Malkovskiy, Yongqian Xu, Xiao Qian Wang, Alexei P. Sokolov, Marisabel Lebron-Colon, Michael A. Meador, Yi Pang

Research output: Contribution to journal › Article › peer-review

36 Scopus citations

Abstract

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-CH{double bond, long}CH bonds are partially converted to the trans-CH{double bond, long}CH, thereby providing necessary conformational cavity for SWNT wrapping. Irradiation triggers a precipitation from SWNT dispersion, providing a purified SWNT/conjugated polymer composite.

Original language	English
Pages (from-to)	475-481
Number of pages	7
Journal	Polymer
Volume	51
Issue number	2
DOIs	https://doi.org/10.1016/j.polymer.2009.11.052
State	Published - Jan 21 2010

Funding

YP acknowledges the financial supports from The University of Akron and NASA (Grant NNC3-1044). APS acknowledges the financial support from the Air Force through the Cooperative Center in Polymer Photonics. ML and MAM acknowledge support from NASA's Fundamental Aeronautics Program. XQW acknowledges support from NSF (DMR-0934142). We also wish to thank The National Science Foundation (CHE-9977144) for funds used to purchase the NMR instrument used in this work.

Keywords

Carbon nanotube
Conjugated polymer
Fluorescence

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10.1016/j.polymer.2009.11.052

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abstract = "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-CH{double bond, long}CH bonds are partially converted to the trans-CH{double bond, long}CH, thereby providing necessary conformational cavity for SWNT wrapping. Irradiation triggers a precipitation from SWNT dispersion, providing a purified SWNT/conjugated polymer composite.",

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AU - Yi, Wenhui

AU - Malkovskiy, Andrey

AU - Xu, Yongqian

AU - Wang, Xiao Qian

AU - Sokolov, Alexei P.

AU - Lebron-Colon, Marisabel

AU - Meador, Michael A.

AU - Pang, Yi

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AB - 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-CH{double bond, long}CH bonds are partially converted to the trans-CH{double bond, long}CH, thereby providing necessary conformational cavity for SWNT wrapping. Irradiation triggers a precipitation from SWNT dispersion, providing a purified SWNT/conjugated polymer composite.

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

Abstract

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