A biomimetic "polysoap" for single-walled carbon nanotube dispersion |
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Authors: | Wang Dan Ji Wen-Xi Li Zi-Chen Chen Liwei |
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Institution: | Department of Chemistry and Biochemistry, Ohio University, Athens, Ohio 45701, USA. |
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Abstract: | As-synthesized single-walled carbon nanotubes (SWNTs) are bundled mixtures of different species. The current challenge in the field of carbon nanotube research lies in the processing and separation of SWNTs, which first require efficient dispersion of individual SWNTs in solvents. We report DNA-mimicking polysoap surfactants that disperse SWNTs in aqueous solutions more effectively than DNA. The polysoaps are synthesized by functionalizing the side chain of poly(styrene-alt-maleic acid) with aminopyrene. The synthetic nature of the polysoap opens a new approach to further optimization of not only SWNT dispersion efficiency but also multi-functional SWNT dispersing surfactant. |
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