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530573

Sigma-Aldrich

Polypyrrole

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

Synonym(s):

PPy

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About This Item

CAS Number:
30604-81-0
MDL number:
MFCD00284347
UNSPSC Code:
12352103
PubChem Substance ID:
24877760
NACRES:
NA.23

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

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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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, 409-430 (2014)
Conducting polymers with superhydrophobic effects as anticorrosion coating
Intelligent Coatings for Corrosion Control edited by Atul Tiwari, Lloyd Hihara, James Rawlins, 409-430 (2014)
Construction of high-capacitance 3D CoO@ polypyrrole nanowire array electrode for aqueous asymmetric supercapacitor
Zhou C, et al.
Nano Letters, 13(5), 2078-2085 (2013)
Lijia Chen et al.
ACS applied materials & interfaces, 5(6), 2047-2052 (2013-03-02)
Herein graphene quantum dot (GQD), a graphene material with lateral dimension less than 100 nm, is explored to dope PPy on F-doped tin oxide glass as an efficient counter electrode for high-performance dye-sensitized solar cells (DSSCs). The GQDs-doped PPy film
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