<P>Multiwalled carbon nanotube (MWCNT)-coated polystyrene (PS) beads have been prepared by dispersion polymerization followed by a layer-by-layer self-assembly method. The concentration of carboxylic acid groups on the MWCNTs increased from 1.81...
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https://www.riss.kr/link?id=A107756386
2009
-
SCOPUS,SCIE
학술저널
52-56(5쪽)
0
상세조회0
다운로드다국어 초록 (Multilingual Abstract)
<P>Multiwalled carbon nanotube (MWCNT)-coated polystyrene (PS) beads have been prepared by dispersion polymerization followed by a layer-by-layer self-assembly method. The concentration of carboxylic acid groups on the MWCNTs increased from 1.81...
<P>Multiwalled carbon nanotube (MWCNT)-coated polystyrene (PS) beads have been prepared by dispersion polymerization followed by a layer-by-layer self-assembly method. The concentration of carboxylic acid groups on the MWCNTs increased from 1.81 × 10<SUP>21</SUP> to 3.43 × 10<SUP>22</SUP> COO<SUP>−</SUP> per g as the treatment time was increased from 3 to 9 h. The sulfonated polystyrene (SPS) beads changed from being negatively charged to positively charged when the cationic polyelectrolyte was self-assembled on their surface. The surface morphology of the adsorbed polyelectrolyte was smooth without any aggregation and the thickness of the polyelectrolyte coating on the SPS beads was ≈0.6 µm. The electrical conductivity and resistance of the MWCNT-coated SPS beads were measured to be 4.0 × 10<SUP>−2</SUP> S · cm<SUP>−1</SUP> and 12.8 Ω at a volume fraction of 91%, respectively.</P><P>
<img src='wiley_img/10221336-2009-30-1-MARC200800531-gra001.gif' alt='wiley_img/10221336-2009-30-1-MARC200800531-gra001'>
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