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577030

Sigma-Aldrich

Polypyrrole

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conductivity 10-50 S/cm (pressed pellet)

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Synonym(s):
PPy
CAS Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.23

form

solid

Quality Level

contains

proprietary organic sulfonic acid as dopant

greener alternative product characteristics

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

solubility

H2O: insoluble
organic solvents: insoluble

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InChI

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

InChI key

KAESVJOAVNADME-UHFFFAOYSA-N

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This Item
530573482552659223
Polypyrrole conductivity 10-50 S/cm (pressed pellet)

Sigma-Aldrich

577030

Polypyrrole

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

Sigma-Aldrich

530573

Polypyrrole

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

Sigma-Aldrich

482552

Polypyrrole

contains

proprietary organic sulfonic acid as dopant

contains

proprietary organic sulfonic acid as dopant

contains

proprietary organic acids as dopant

contains

-

greener alternative product characteristics

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

greener alternative product characteristics

-

greener alternative product characteristics

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

greener alternative product characteristics

-

solubility

H2O: insoluble

solubility

H2O: insoluble, organic solvents: insoluble

solubility

-

solubility

H2O: soluble

greener alternative category

, Enabling

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-

greener alternative category

Enabling,

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-

Quality Level

100

Quality Level

100

Quality Level

100

Quality Level

-

General description

Polypyrrole (PPy) is a widely used highly conductive and highly stable heterocyclic polymer. It is majorly used in electrochemical applications. It is a cost-efficient conducting polymer that has a stable oxidation and high solubility in water. It exhibits a high degree of flexibility than polyaniline and has a density that facilitates a higher capacitance per unit volume.
PPy may be prepared by a standard electrochemical technique. It may also be prepared by reacting -napthalene sulfonic acid (NSA) and ammonium peroxo-disulfate 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 have been reported. Lectrosensitivity and lower oxidation potential of PPy make it potentially useful for drug delivery, chemical sensors, batteries, ion selective electrodes, biosensor and biochemistry research.
We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Green Chemistry. This product is used in energy conversion and storage, thus has been enhanced for energy efficiency. Click here for more information.

Application

Conductive additive for thermoplastics and thermosets. Polypropylene composites constitute the polymer electrolyte membrane fuel cell (PEMFC). Addition of PPy to polypropylene composites alters its conductivity.
PPy can be used for a variety of applications such as:
  • electrode materials for sensors used in electrocardiography (ECG)
  • formation of electrode material for a variety of energy storage applications
  • encapsulation of lithium sulfide (Li2S) as a high performance cathode material

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

Other Notes

Stable up to at least 290°C in air

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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In-situ encapsulation of nickel nanoparticles in polypyrrole nanofibres with enhanced performance for supercapacitor
Muhamad SU, et al.
Electrochimica Acta, 249(8), 9-15 (2017)
Sensors Based on Conducting Polymers for Measurement of Physiological Parameters
Teran-Jimenez O, et al.
IEEE Sensors Journal, 17(8), 2492-2497 (2017)
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)
Facile synthesis of Li 2 S-polypyrrole composite structures for high-performance Li 2 S cathodes
She ZW, et al.
Energy & Environmental Science, 7(2), 672-676 (2014)

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The application of conducting polymers at the interface with biology is an exciting new trend in organic electronics research.

Dr. Tan and researcher introduce recent trends in Self-healing Soft Electronic Materials and Devices. The emergence of smart, functional SHPs will be highly beneficial to the advancement of the next-generation self-healing soft electronic devices. Autonomously self-healing devices could help to minimize the need for repair or replacement of electronics and machines, potentially reducing the cost of materials and reducing electronic waste.

While dye sensitization as the basis for color photography has been accepted for a very long time,1 attempts to use this principle for the conversion of solar light to electricity generally had resulted only in very low photocurrents, below 100 nA/cm

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