577030 Sigma-Aldrich


conductivity 10-50 S/cm (pressed pellet)

Synonym: PPy



Related Categories 3D Printing Materials for Research and Development, Materials Science, Materials for Buffer Layer, Organic Photovoltaic (OPV) Materials, Organic Semiconductors for 3D Printing,
Quality Level   100
form   solid
contains   proprietary organic sulfonic acid as dopant
solubility   H2O: insoluble
  organic solvents: insoluble
InChI   1S/C4H5N/c1-2-4-5-3-1/h1-5H


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.


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.


5, 25 g in poly bottle

Packaged in glass bottles

Other Notes

Stable up to at least 290°C in air

Safety & Documentation

Safety Information

Personal Protective Equipment 
NONH for all modes of transport
WGK Germany 
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable


Certificate of Analysis (COA)

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Protocols & Articles


3D Printing of Carbon Fiber-Reinforced Composites

3D printing is a type of additive manufacturing that can be used to rapidly fabricate components with highly customizable geometries, most typically using a layer-by-layer fabrication process. 3D pri...
Zhenyu Bo* (Ph.D Candidate at Northwestern University) and Jia Choi*, PhD, Product Manager

*Materials Science Product Management Team, MilliporeSigma, Milwaukee, WI.
Keywords: Deposition, Nanomaterials, Nanotubes

Applications of Conducting Polymer Devices in Life Sciences

Leslie H. Jimison1, Dion Khodagholy1, Thomas Doublet1,2, Christophe Bernard2, George G. Malliaras1, and Róisín M. Owens1 1Department of Bioelectronics, Ecole Nationale Supérieure des Mines CMP-EMSE, ...
Keywords: Bacterial conjugations, Cancer, Cell culture, Diagnostic, Diffusion, Electronics, Gastrointestinal, Immunofluorescence, Organic electronics, Semiconductor, Spectroscopy

Progress for High Performance Tandem Organic Solar Cells

The Centre of Nanoscale Science and Technology and Key Laboratory of Functional Polymer Materials, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China State...
Keywords: Absorption, Nucleic acid annealing, Polymer science, Recombination, Renewable energy, Semiconductor, Separation, Solar cells

Recent Advances in Hybrid Halide Perovskites-based Solar Cells

Kuppuswamy Kalyanasundaram, Shaik. M. Zakeeruddin, Michaël Grätzel* Laboratory for Photonics and Interfaces (LPI) Swiss Federal Institute of Technology at Lausanne (EPFL) 1015 Lausanne, Switzerland *...
Kuppuswamy Kalyanasundaram, Shaik. M. Zakeeruddin, Michaël Grätzel
Material Matters, 2016, 11.1, 3
Keywords: Absorption, Atomic layer deposition, Capillary electrophoresis, Degradations, Deposition, Diffusion, Environmental, Infrared spectroscopy, Nanomaterials, Nanotubes, Nucleic acid annealing, Recombination, Semiconductor, Separation, Sol-gel, Solar cells, Solvents, Spectroscopy, Spin coating, Substitutions

Stimuli-Responsive Materials as Intelligent Drug Delivery Systems

Amit Singh and Mansoor M. Amiji* Department of Pharmaceutical Sciences, School of Pharmacy Northeastern University, Boston, MA 02115 USA *Email:; Tel: 617-373-3137
Keywords: Absorption, Aerobic, Angiogenesis, Apoptosis, Atomic absorption spectroscopy, Cancer, Chromatin immunoprecipitation, Clinical, Deprotonations, Diseases, Electron spin resonance, Enzyme activity, Gastrointestinal, Glycolysis, Growth factors, Infrared spectroscopy, Ligands, Magnetic resonance imaging, Materials Science, Nanomaterials, Nanotubes, Pharmaceutical, Polymerization reactions, Sol-gel, transformation

Understanding and Successfully Applying Materials for Dye-Sensitized Solar Cells

Hans Desilvestro, Yanek Hebting, Mikael Khan, Damion Milliken Dyesol, Queanbeyan NSW 2620, Australia Email:
Keywords: Absorption, Adhesion, Adsorption, Bacterial conjugations, Calorimetry, Deposition, Diffusion, Electronics, Extinction coefficient, Hydroxylations, Ligands, Mass spectrometry, Nucleic acid annealing, Oxidations, PAGE, Printed electronics, Recombination, Reductions, Semiconductor, Solar cells, Solvents

Peer-Reviewed Papers


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