MUMTAZ, Muhammad; LABRUGÈRE, Christine; CLOUTET, Eric; CRAMAIL, Henri

doi:10.1021/la901921q

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MUMTAZ, Muhammad
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 4 LCPO : Polymer Materials for Electronic, Energy, Information and Communication Technologies

LABRUGÈRE, Christine
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

CLOUTET, Eric

Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 4 LCPO : Polymer Materials for Electronic, Energy, Information and Communication Technologies

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Langmuir. 2009, vol. 25, n° 23, p. 13569-13580

American Chemical Society

Résumé en anglais

Well-defined polyaniline (PANI) nano-objects (e.g., spheres, peanuts, rice grains, corals, and fibers) were prepared by aniline dispersion polymerization in aqueous media in the presence of various reactive polymer stabilizers (i.e., poly(ethylene oxide) (PEO), poly(vinyl alcohol) (PVA), and poly[(N-vinyl pyrrolidone)-co-(vinyl alcohol)] (PNVP-co-PVA)). It was found that the shape, size, and conductivity of resulting PANI nanostructures depended on the acidic conditions along with the nature, molecular weight, and functionality of the reactive stabilizer. PANI samples were analyzed by X-ray photoelectron spectroscopy (XPS), dynamic scanning calorimetry (DSC), thermogravimetric analysis (TGA), UV-visible and FTIR spectroscopy, transmission electron microscopy (TEM), atomic force microscopy (AFM), and conductivity measurements. PANI samples show conductivities between 5 x 10(-3) to 5 x 10(-1) S/cm depending upon the experimental conditions. The best conductivities were obtained when aniline was polymerized in a mixture of DMSO and water (2:3) in the presence of PEO- or PNVP-co-PVA-based reactive stabilizers.< Réduire

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COMPOSITE

PARTICLES

LIGHT-SCATTERING

RAY PHOTOELECTRON-SPECTROSCOPY

CONDUCTING POLYMER COLLOIDS

DISPERSION POLYMERIZATION

ELECTRICAL-CONDUCTIVITY

CORROSION PROTECTION

MORPHOLOGY

FILMS

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Synthesis of Polyaniline Nano-Objects Using Poly(vinyl alcohol)-, Poly(ethylene oxide)-, and Poly[(N-vinyl pyrrolidone)-co-(vinyl alcohol)]-Based Reactive Stabilizers

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