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482552

Sigma-Aldrich

Polypyrrole

greener alternative

doped, 5 wt % dispersion in H2O, conductivity >0.005 S/cm (dried cast film)

Synonym(s):

PPy

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About This Item

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

Quality Level

100

contains

proprietary organic acids as dopant

greener alternative product characteristics

Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.

sustainability

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concentration

5 wt % dispersion in H2O

greener alternative category

Enabling,

InChI

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

InChI key

KAESVJOAVNADME-UHFFFAOYSA-N

General description

Polypyrrole (PPy) is a conductive and highly stable polymer, doped with proprietary organic acids. It may be prepared by 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.
Polypyrrole(PPy) is a π-conjugated conductive polymer that can be electrochemically synthesized and deposited on a variety of surfaces. The deposited PPy can be used in a wide range of sensor based applications due to the following properties:
  • Ion exchange capacity.
  • Electrochromic effects.
  • Redox activity.
  • Corrosion resistant.
  • Catalytic activity.

We are committed to bringing you Greener Alternative Products, which adhere to one or more of the 12 Principles of Green Chemistry. This product enables flexible high-performance energy conversion and storage and thus has been enhanced for energy efficiency. Click here for more information.

Application

Conducting polymers may be used in electronics, chemical sensors.
PPy can be used in the development of devices including:
  • conductive sensors for quality monitoring
  • blended with nanotubes for supercapacitors
  • nanowire actuators
  • biosensors for drug delivery
  • CO2 absorption materials

Packaging

Packaged in poly bottles

Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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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Electrochemical sensors based on conducting polymer?polypyrrole.
Ramanavicius A, et al.
Electrochimica Acta, 51(27), 6025-6037 (2006)
Miniaturized water quality monitoring pH and conductivity sensors.
Banna MH, et al.
Sensors and Actuators B, Chemical, 193(27), 434-441 (2014)
Polypyrrole nanowire actuators.
Berdichevsky Y and Lo Y
Advanced Materials, 18(1), 122-125 (2006)
Conducting polymers in electronic chemical sensors
Janata J and Josowicz M
Nature Materials, 2, 19-24 (2003)
N-doped polypyrrole-based porous carbons for CO2 capture.
Sevilla M, et al.
Advances in Functional Materials, 21(14), 2781-2787 (2011)
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