| Titre : | Water-dispersed conductive polypyrroles doped with lignosulfonate and the weak temperature dependence of electrical conductivity (2010) |
| Auteurs : | Chao Yang, Auteur ; Peng Liu, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Industrial & engineering chemistry research (Vol. 48 N° 21, Novembre 2009) |
| Article en page(s) : | pp. 9498–9503 |
| Note générale : | Chemical engineering |
| Langues : | Anglais |
| Tags : | Water-dispersed conductive polypyrroles Chemical oxidative polymerization Lignosulfonate |
| Résumé : | The water-dispersed conductive polypyrroles (PPys) were prepared via the chemical oxidative polymerization with lignosulfonate (LGS), an inexpensive byproduct from pulp processing industries, as a dopant and template for tuning the properties of polypyrrole nanoparticles. The lignosulfonate doped polypyrrole (PPy/LGS) nanoparticles were characterized with Fourier transform infrared (FTIR), UV−vis, thermogravimetric analysis (TGA), X-ray diffraction (XRD), transmission electron microscopy (TEM), and electric conductivity. The diameters of the PPy/LGS nanoparticles decreased from 100 to 20 nm with the increasing LGS. Their electrical conductivities were affected markedly by the dopant amount added. The PPy/LGS have weakly temperature-dependent conductivity over the entire temperature interval from 283 to 423 K. |
| En ligne : | http://pubs.acs.org/doi/abs/10.1021/ie900189j |
