Characterization of singlewalled carbon nanotubes-PMMA composites

Stéphan, C.; Nguyen, Tinh; Chapelle, Marc Lamy de la; Lefrant, S.; Journet, Catherine; Bernier, P.

doi:10.1016/s0379-6779(99)00259-3

Cited by 184 publications

(115 citation statements)

References 22 publications

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“…Further, the plot of the square root of scan rate versus current density was found to be linear (in the case of ZnO-PANI), indicating a diffusion-controlled process at ZnO-PANI electrodes. 32 Moreover, on the basis of the Randles _ Sevick equation, the diffusion coefficient (D1) of 1.0 M HCl at the ZnO-PANI electrode was calculated to be 0.7Â10 À10 cm 2 s À1 . This value is almost three times smaller than the D1 obtained with ZnO-PANI (undoped).…”

Section: Properties Of Zno-pani Films F Alvi Et Almentioning

confidence: 99%

Evaluating the chemio-physio properties of novel zinc oxide–polyaniline nanocomposite polymer films

Alvi

Ram

Gómez

et al. 2010

Polym J

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Recently, polymer matrix-based nanocomposites have become a prominent area of research and development in optics, as well as in optoelectronic, biomedical, electrical and electronic applications. Organic polymer-based electronic devices have the potential to be lower in cost and more flexible in the manner in which they are manufactured. However, they need significant improvement in both efficiency and long-term stability. Therefore, we made an attempt to synthesize zinc oxide (ZnO)-polyaniline (PANI) using chemical and emulsion polymerization techniques. The properties of ZnO-PANI films were then systematically characterized with several physical techniques. Electrochemical investigations revealed that the individual redox properties of ZnO and PANI can be maintained in a nanocomposite ZnO-PANI system. Furthermore, our results indicated that ZnO-PANI films can exhibit a wide redox potential window. Moreover, we observed the formation of a single-layer nano-Schottky junction in ZnO-PANI films, and interesting positive temperature coefficient properties in ZnO-PANI-embedded polystyrene films. Polymer Journal ( INTRODUCTIONIn recent years, there has been considerable interest among researchers to develop novel inorganic _ organic hybrid materials with compositions modulated on the nanoscale because of their many potential applications in display technologies, microelectronics, catalysis, sensors and molecular electronics. 1 The fabrication of nanocomposite films by wet chemical techniques has been proven to be a more simple and inexpensive strategy than technologically demanding physical methods. 2 Recently, Ram et al. [3][4][5][6][7][8] developed metal oxide and conducting polymer nanocomposite films of TiO 2 -PANI, TiO 2 -polypyrrole, SnO 2 -polyhexylthiophene, TiO 2 -poly (thiopheneaniline) nanocomposite, Mn-Ferrite-PANI and MWCNT-poly (o-anisidine) using wet chemical methods and used them extensively in gas sensing and molecular electronics applications. PANI is one of the most widely studied materials because of its unique electrochemical, chemical and physical properties. In addition, PANI exhibits high electrical conductivity and good environmental stability in both doped and pristine (undoped) states. 9-11 The electronic, optical, photo-electrochemical, photoconductive, photovoltaic, thermal and sensing, for example, gas sensing and biosensing, properties of PANI could be improved by incorporating PANI with polystyrene latex, multiwalled carbon nanotubes, single-walled nanotubes, montmorillonite, graphite, MCM-41, TiO 2 and SnO 2 micro and nanoparticles. 9-18 PANI composites have also been shown to possess a variety of unique mechanical, electrical and structural properties because of synergistic effect from intimate mixing

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Section: Properties Of Zno-pani Films F Alvi Et Almentioning

confidence: 99%

Evaluating the chemio-physio properties of novel zinc oxide–polyaniline nanocomposite polymer films

Alvi

Ram

Gómez

et al. 2010

Polym J

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“…The highest variation in the PMMA-CoHCF relaxation times is located in the quaternary (3) and methylenic (2) carbons on the backbone chain. An increase of T 1$ (H) in PMMA-Ce:YAG occurs for peaks (4) and (5), the methoxylic and carbonylic groups. The interaction between the nanofiller and PMMA is principally localized around these nuclei.…”

Section: Resultsmentioning

confidence: 97%

“…Poly(methyl methacrylate) (PMMA) is a commonly used thermoplastic matrix for fibres, sheet and particles. There have been several studies on PMMA-fibre composites prepared by in situ polymerization [3], solution mixing [4], or melt blending [5]. The last one is already an industrial process for fabricating carbon fibre-reinforced thermoplastic composites.…”

Section: Introductionmentioning

confidence: 99%

Macro-micro relationship in nanostructured functional composites

Zanotto¹,

Spinella²,

Nasillo³

et al. 2012

Express Polym. Lett.

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Abstract. This paper examines the results of the characterization of two functional composites: Poly(methyl methacrylate) (PMMA)-Ce:YAG (yttrium aluminium garnet doped with cerium) and PMMA-cobalt hexacyanoferrate (CoHCF). The composites were prepared as possible emitters in the fields of lighting thermal sensors. The prepared composites were characterized using transmission electron microscopy (TEM), nuclear magnetic resonance (NMR) spectroscopy, thermogravimetric analysis (TGA), differential scanning calorimetry (DSC) and dynamic mechanical analysis (DMA) analyses to study the correlation between micro and macro characteristics. We found that the molecular interactions of the two different fillers with the matrix were localized in different sites of the polymer chains. Moreover, the composites showed an increased thermal strength and stiffness, in particular the PMMA-Ce:YAG composite.

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“…Stephan et al prepared poly(methyl methacrylate)-singlewalled carbon nanotube composites by solution mixing (Stephan et al, 2000). Cooper et al used a polymer extrusion technique to prepare carbon nanotube mixed in a poly(methyl methacrylate) matrix and found that the impact strength was significantly improved by even small amounts of single-wall nanotube (Cooper et al, 2002).…”

mentioning

confidence: 99%

The Application of Carbon Nanotube to Bone Cement

Nien¹

2011

Carbon Nanotubes - Polymer Nanocomposites

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Characterization of singlewalled carbon nanotubes-PMMA composites

Cited by 184 publications

References 22 publications

Evaluating the chemio-physio properties of novel zinc oxide–polyaniline nanocomposite polymer films

Evaluating the chemio-physio properties of novel zinc oxide–polyaniline nanocomposite polymer films

Macro-micro relationship in nanostructured functional composites

The Application of Carbon Nanotube to Bone Cement

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