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577065

Sigma-Aldrich

Polypyrrole

undoped, 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
NACRES:
NA.23

form

solid

extent of labeling

~20 wt. % loading

conductivity

~8.5 S/cm

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 ß-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,

Application

PPy may be used to prepare cobalt based electrocatalyst for anion exchange membrane fuel cells.
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

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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Anion-exchange membrane fuel cells: Dual-site mechanism of oxygen reduction reaction in alkaline media on cobalt- polypyrrole electrocatalysts.
Olson TS, et al.
The Journal of Physical Chemistry C, 114(11), 5049-5059 (2010)
In Situ XAFS and HAXPES Analysis and Theoretical Study of Cobalt Polypyrrole Incorporated on Carbon (CoPPyC) Oxygen Reduction Reaction Catalysts for Anion-Exchange Membrane Fuel Cells
Asazawa K, et al.
The Journal of Physical Chemistry C, 118(44), 25480-25486 (2014)
XAFS analysis of unpyrolyzed CoPPyC oxygen reduction catalysts for anion-exchange membrane fuel cells (AMFC).
Asazawa K, et al.
Electrochemical Society Transactions, 33(1), 1751-1755 (2010)
Chemical Synthesis and Morphology of b?Naphthalene Sulfonic Acid-Doped Polypyrrole Micro/Nanotube.
Akinyeye R, et al.
Fullerenes, Nanotubes, and Carbon Nanostructures, 14 (2006)
F Valentini et al.
Biosensors & bioelectronics, 43, 75-78 (2013-01-02)
A glucose biosensor was assembled using gold microelectrodes (diameter of 250 μm) coated by Single-Walled Carbon Nanotubes (SWCNTs), via the Electrophoresis Deposition Process (EPD). This nanostructured platform was successfully used to deposit the poly(pyrrole)/glucose oxidase film (PPy/GOx). The most important
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