Journal
POLYMER
Volume 54, Issue 21, Pages 5643-5647Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.polymer.2013.08.035
Keywords
Multi-walled carbon nanotube; Polysilsesquioxane; Dispersion
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Funding
- Y. Suda and Dr. M. Wakao of Graduate School of Science and Engineering, Kagoshima University (Japan)
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In this study, we found that 1-pentanol dispersion of multi-walled carbon nanotube (MWCNT) was obtained when ultrasonication of MWCNT was performed in 1-pentanol solution of ammonium groupcontaining polysilsesquioxane with triiodide anions (PSQ-I-3). Dispersibility of MWCNT in 1-pentanol was first investigated by the presence of absorption at 750 nm in UV-Vis measurements. In addition, the number-average particle size estimated by dynamic light scattering measurement of 1-pentanol dispersion of MWCNT/PSQ-I-3 was assessed to be 120.3 +/- 34.8 nm. The dispersion passed through a membrane filter with ca. 7 gm pores, indicating that large MWCNT aggregates in micrometer scale did not exist in 1-pentanol. Furthermore, the transmission electron microscopy image of the sample obtained by drying 1-pentanol dispersion of MWCNT/PSQ-I3 showed many lines with ca. 10 nm diameter derived from MWCNT, indicating that MWCNTs were individually dispersed in PSQ matrix. (C) 2013 Elsevier Ltd. All rights reserved.
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