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標題: Preparation and characterization of conductive carbon nanotube-polystyrene nanocomposites using latex technology
作者: Wu, T.M.
Chen, E.C.
關鍵字: nanostructures;polymers;electrical properties;transmission electron;microscopy;multi-walled carbon nanotubes;photovoltaic devices;polymer composites;colloidal crystals;load-transfer;reinforcement;microspheres;arrays;films
Project: Composites Science and Technology
期刊/報告no:: Composites Science and Technology, Volume 68, Issue 10-11, Page(s) 2254-2259.
This study reports the preparation of conductive multi-walled carbon nanotubes (MWCNTs)-polystyrene (PS) nanocomposites using latex technology. The MWCNTs were first well dispersed in methanol solution and then added to a suspension of the monodispersed 230 nm PS latex synthesized by emulsion polymerization with sodium dodecylsulfate anionic surfactant. Both FESEM and HRTEM images indicate that the resulting PS latices are closed to spherical dots with a particle size about 230 +/- 4 nm. The HRTEM micrograph of MWCNT-PS nanocomposites shows the MWCNT is well separated and uniformly distributed between the monodispersed PS latices. The T(g) of MWCNT-PS nanocomposites is gradually increased with increasing the content of MWCNT, indicating possible interaction between MWCNT and PS latices to limit the motivation of PS. The conductivities of 1.5 wt.% and 6.5 wt.% MWCNT-PS nanocomposites are more than four and ten orders in magnitude higher than that of PS without MWCNT, respectively. (C) 2008 Elsevier Ltd. All rights reserved.
ISSN: 0266-3538
DOI: 10.1016/j.compscitech.2008.04.010
Appears in Collections:材料科學與工程學系

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