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530573

Sigma-Aldrich

Polypyrrole

doped, conductivity 30 S/cm (bulk), extent of labeling: 20 wt. % loading, composite with carbon black

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Synonym(s):
PPy
CAS Number:
30604-81-0
MDL number:
MFCD00284347
PubChem Substance ID:
24877760
NACRES:
NA.23

Quality Level

100

form

solid

contains

proprietary organic sulfonic acid as dopant

extent of labeling

20 wt. % loading

mp

>300 °C

solubility

H2O: insoluble
organic solvents: insoluble

InChI

1S/C4H5N/c1-2-4-5-3-1/h1-5H

InChI key

KAESVJOAVNADME-UHFFFAOYSA-N

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General description

Polypyrrole (PPy) is a conductive and highly stable polymer. It may be prepared by a standard electrochemical technique. PPy may also be prepared by reacting β-napthalene sulfonic acid (NSA) and ammonium peroxo-disulphate in aqueous medium. The charges on the surfaces can be easily modified by doping the polymer during its synthesis.Solubility and conductivity measurements of PPy doped with camphor sulfonic and dodecyl benzene sulfonic acid has been reported. Electrosensitivity and lower oxidation potential of PPy make it potentially useful for drug delivery, chemical sensors, batteries, ion selective electrodes, biosensor and biochemistry research. 5
Polypyrrole (PPy) is a widely used heterocyclic polymer that is highly conductive and is majorly used in electrochemical applications. It is a cost efficient conducting polymer that has a stable oxidation and high solubility in water. It has a high degree of flexibility than polyaniline and has a density that facilitates a higher capacitance per unit volume.

Application

Inherently conducting polymer based additive. Loading of polypyrrole in carbon black typically 20%. Stable up to at least 300°C in air.
PPy is mainly used in the fabrication of a variety of electrochemical devices which include supercapacitors, chemical sensors, dye sensitized solar cells and lithium-ion batteries.
Conducting polymer.
Conductive additive for thermoplasitics and thermosets.

Packaging

Packaged in glass bottles

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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Electrochemistry of nucleic acids and proteins, 1(1), 596-612 (2005)
Conducting polymers with superhydrophobic effects as anticorrosion coating
Intelligent Coatings for Corrosion Control edited by Atul Tiwari, Lloyd Hihara, James Rawlins, 409-430 (2014)
Conducting polymers with superhydrophobic effects as anticorrosion coating
Intelligent Coatings for Corrosion Control, 409-430 (2014)
Nanostructured conducting polymers and their biomedical applications
Wang GW, et al.
Journal of Nanoscience and Nanotechnology, 14(1), 596-612 (2014)
Monodisperse porous LiFePO4 microspheres for a high power Li-ion battery cathode
Sun C, et al.
Journal of the American Chemical Society, 133(7), 2132-2135 (2011)
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