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S&M2072 Research Paper of Special Issue https://doi.org/10.18494/SAM.2019.2446 Published: December 16, 2019 Dispersion of Metallic Arc-discharged Single-walled Carbon Nanotubes by Two Polysilane Derivatives [PDF] Jinling Gao, Yongfu Lian, Chao Wen, and Hongmei Bi (Received May 26, 2019; Accepted September 4, 2019) Keywords: polysilane derivatives, selective dispersion, metallic single-walled carbon nanotubes, optical absorption spectrum, Raman spectroscopy
Two water-soluble polysilane derivatives were synthesized by the addition reaction of olefine acid with polysilane. After heating at 653 K and acidification, arc-discharged single-walled carbon nanotubes (SWNTs) were ultrasonically dispersed in aqueous solutions of two different polysilane derivatives and then subjected to ultracentrifugation to remove these insoluble species. Vis–NIR absorption spectra showed that the two polysilane derivatives have good dispersing ability toward metallic SWNTs (m-SWNTs). Moreover, the longer the side chain of the polysilane derivative, the higher the output of m-SWNTs. In addition, Raman spectra indicated that m-SWNTs with different chiral indexes are selectively dispersed in the two aqueous solutions of polysilane derivatives, indicating that the two polysilane derivatives can selectively identify m-SWNTs.
Corresponding author: Hongmei BiThis work is licensed under a Creative Commons Attribution 4.0 International License. Cite this article Jinling Gao, Yongfu Lian, Chao Wen, and Hongmei Bi, Dispersion of Metallic Arc-discharged Single-walled Carbon Nanotubes by Two Polysilane Derivatives, Sens. Mater., Vol. 31, No. 12, 2019, p. 4093-4101. |