The effect of extended polymer chains on the properties of transparent multi-walled carbon nanotubes/poly(methyl methacrylate/acrylic acid) film

Optically transparent and electrically conductive thin films composed of multi-walled carbon nanotube (MWCNT) reinforced polymethyl methacrylate/acrylic acid (PMMA/AA) were fabricated using a wire coating technique. Poly(acrylic acid) controls the level of MWCNT dispersion in aqueous mixtures and re...

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Bibliographic Details
Published in:Nanotechnology 2010-05, Vol.21 (18), p.185702-185702
Main Authors: Huang, Yuan-Li, Tien, Hsi-Wen, Ma, Chen-Chi M, Yu, Yi-Hsiuan, Yang, Shin-Yi, Wei, Ming-Hsiung, Wu, Sheng-Yen
Format: Article
Language:English
Subjects:
Acrylic acid
Bundles
Chains (polymeric)
Dispersions
Electric Impedance
Electrically conductive
Hydrogen-Ion Concentration
Multi wall carbon nanotubes
Nanotechnology
Nanotubes, Carbon - chemistry
Photoelectron Spectroscopy
Polymethacrylic Acids - chemistry
Polymethyl methacrylates
Sodium Hydroxide - chemistry
Spectrum Analysis, Raman
Surface Properties
Transmittance
X-Ray Diffraction
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Summary:Optically transparent and electrically conductive thin films composed of multi-walled carbon nanotube (MWCNT) reinforced polymethyl methacrylate/acrylic acid (PMMA/AA) were fabricated using a wire coating technique. Poly(acrylic acid) controls the level of MWCNT dispersion in aqueous mixtures and retains the well-dispersed state in the polymer matrix after solidification resulting from extended polymer chains by adjusting the pH value. The exfoliating the MWCNT bundles by extended polymer chains results in the excellent dispersion of MWCNT. It causes a lower surface electrical resistance at the same MWCNT content. The hydrophilic functional groups (-COO( - )NA( + )) also caused a decrease in the crystallization of PMMA and led to an increase in the transmittance.
ISSN:0957-4484
1361-6528
DOI:10.1088/0957-4484/21/18/185702