Characterization of conducting polymer–quartz composites

Armes, Steven P.; Gottesfeld, S.; Beery, J. G.; Garzón, Fernando H.; Mombourquette, C.; Hawley, M.; Kuhn, H.H.

doi:10.1039/jm9910100525

Cited by 16 publications

(4 citation statements)

References 8 publications

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“…The conditions used for the PPy coating were those described by Armes and co-workers. , The morphology of the PANi overlayer is clearly markedly rougher than that of the PPy. Similar effects have been reported by Armes et al for the deposition of PPy and PANi onto quartz fibers . The thickness of the PPy and PANi overlayers can be calculated using the following equation where δ is the conducting polymer overlayer thickness, R is the radius of the uncoated latex particles, M 1 and ρ 1 are the mass fraction and density of the PS component, and M 2 and ρ 2 are the mass fraction and density of the conducting polymer component.…”

Section: Resultssupporting

confidence: 57%

Synthesis and Characterization of Micrometer-Sized, Polyaniline-Coated Polystyrene Latexes

et al. 1998

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Poly(N-vinylpyrrolidone)-stabilized polystyrene (PS) latexes have been coated with thin overlayers of polyaniline (PANi) to produce electrically conductive “core−shell” particles. In this work we focused on the morphology of the PANi overlayer, the colloid stability of the coated latexes, and electrical conductivity. PANi-coated particles exhibit a nonuniform morphology as observed by scanning electron microscopy (SEM), in comparison with the relatively smooth polypyrrole overlayers synthesized in a previous study (Lascelles, S. F. et al., J. Mater. Chem. 1997, 7, 1339 and 1349). Disk centrifuge photosedimentometry confirmed that the PANi-coated PS latexes were weakly flocculated. The underlying PS latex “core” was quantitatively removed by solvent extraction, and SEM observations of the PANi residues revealed a “broken egg shell” morphology. Vibrational bands due to the PANi component were more intense in both the FT-IR and Raman spectra of the PANi-coated PS latexes, which is also consistent with the “core−shell” morphology. No reduction in the surface roughness of the PANi overlayer was observed when the rate of the aniline polymerization was decreased or if the latex surface was pretreated with either a thin polypyrrole overlayer or a layer of adsorbed surfactant. Similarly, only rough PANi overlayers were observed when coating a sulfonated PS latex. However, a more uniform deposition of PANi and a corresponding improvement of colloid stability were obtained using aniline hydrochloride monomer in the absence of added acid.

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Section: Resultssupporting

confidence: 57%

Synthesis and Characterization of Micrometer-Sized, Polyaniline-Coated Polystyrene Latexes

et al. 1998

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“…In contrast, we have used near-monodisperse 13 mm diameter quartz fibres with a very smooth surface. Similar fibres have been previously coated with an organic conducting polymer, 38 but as far as we are aware no-one has examined such quartz fibres for surface-initiated ATRP. This is perhaps surprising, since in principle this model substrate allows several complementary characterisation techniques to be employed, including FT-IR spectroscopy, Rutherford back-scattering spectrometry, scanning electron microscopy and thermogravimetric analysis.…”

Section: Introductionmentioning

confidence: 99%

Biocompatible polymer brushes grown from model quartz fibres: synthesis, characterisation and in situ determination of frictional coefficient

et al. 2010

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“…Many composite systems use carbon; file polymer can often be investigated in an inert atmosphere, and the carbon in air (197,198). In other reported thermal analysis studies on composites, the inorganic might be a metal, such as iron (199) or nickel (200), oxides such as quartz (201), lead zirconate (202), or an oxy salt such as calcium carbonate (203).…”

Section: Organic and Polymeric Materialsmentioning

confidence: 99%

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Dollimore¹

1992

Anal. Chem.

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Characterization of conducting polymer–quartz composites

Cited by 16 publications

References 8 publications

Synthesis and Characterization of Micrometer-Sized, Polyaniline-Coated Polystyrene Latexes

Synthesis and Characterization of Micrometer-Sized, Polyaniline-Coated Polystyrene Latexes

Biocompatible polymer brushes grown from model quartz fibres: synthesis, characterisation and in situ determination of frictional coefficient

Thermal analysis

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