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687316 Sigma-Aldrich

Poly(3,4-ethylenedioxythiophene), bis-poly(ethyleneglycol), lauryl terminated

0.7 wt. % (dispersion in nitromethane)

Synonym: Aedotron C3-NM, C12-PEG-block-PEDOT-block-PEG-C12, PEDOT:PEG

  •  NACRES NA.23



Related Categories π-Conjugated Polymers, Bioelectronics, Biosensing and Bioimaging, Conductive Polymers, Hole Injection Layer (HIL) Materials,
Quality Level   100
form   liquid (dispersion)
contains   perchlorate as dopant
composition   Acetonitrile, 4-8 wt. %
  Aedotron- C3 polymer, 0.2-0.7 wt. %
  Nitromethane, 90-95 wt. %
  proprietary processing additive, 0.1-0.7 wt. %
  Propylene glycol, 0.0-0.3 wt. %
concentration   0.5-0.9 wt. % (content of dispersion)
  0.7 wt. % (dispersion in nitromethane)
surface resistivity   600-3000 Ω/sq
transmittance   70-85%
particle size   200-600 nm
conductivity   10-60 S/cm


General description

Aedotron polymers are solvent-dispersable forms of PEDOT. These are copolymers of doped PEDOT and a flexible, soluble polymer such as poly(ethylene glycol) (PEG). These colloidal dispersions are stabilized by the highly solvated PEG chains which sterically limit the aggregation of the PEDOT blocks. Aedotron polymers are neither acidic nor corrosive, it easily disperses in polar aprotic solvents. Aedotron C3-NM is a triblock copolymer.

Please follow this link for Aedotron/Oligotron selection guide table.


Conducting polymer dispersion suitable for making conducting films, anti-static layers and transparent electrodes for electroluminescent lamps.

Nitromethane dispersions can be used to cast thin films on glass, ITO, silicon wafers and many polymeric substrates. Compatibility of the polymeric substrate with nitromethane should be tested in each case. Coat the substrate with a "pool" of the nitromethane dispersion. Thin transparent films are typically spun at 1000 RPM or higher speeds, but more conducting films can be obtained at lower speeds. A single layer spun at 1000 RPM is typically 75 nm thick.


25 g in glass bottle

Features and Benefits

The copolymer structure renders the conducting polymer PEDOT highly dispersible in organic solvents. Nitromethane has a suitable volatility for spin coating.


Store this product at room temperature (do not refrigerate or freeze). Some settling will normally occur. Agitate, sonicate, and filter prior to use. A plug of glass wool in a pipette can be used for easy filtration. The shelf life of this product will vary depending on how it is stored and handled. Product should be discarded if heavy aggregation occurs, or if sonication / filtering are inadequate to produce a good casting solution.

Legal Information

Aedotron is a trademark of TDA Research, Inc.

Safety & Documentation

Safety Information

Signal word 
Hazard statements 
UN1261 - class 3 - PG 2 - Nitromethane, solution
WGK Germany 
Flash Point(F) 
71.6 °F - closed cup
Flash Point(C) 
22 °C - closed cup


Certificate of Analysis (COA)

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Protocols & Articles


Conjugated Polymers for the Engineering of Device/Tissue Interface

There is considerable interest in the development of conjugated, electronically and ionically active polymers for interfacing active biomedical devices with living tissue.1-6 Conjugated polymers offe...
David C. Martin, Laura K. Povlich and Kathleen E. Feldman, Department of Materials Science and Engineering - The University of Delaware
Material Matters 2010, 5.3, 68.
Keywords: Adhesion, Cycloadditions, Deposition, Magnetic resonance spectroscopy, Polymerization reactions, Reductions, Solution polymerization

New conducting and semiconducting polymers for plastic electronics

In the emerging field of organic printable electronics, such as OLEDs and organic photovoltaics (OPVs), there is a significant need for improved organic conducting and semiconducting materials. This ...
Dr. Silvia Luebben, Dr. Shawn Sapp
Material Matters 2007, 2.3, 11.
Keywords: Bacterial conjugations, Electronics, Environmental, Inductively coupled plasma, Microscopy, Oxidations, Photovoltaics, Purification, Recombination, Renewable energy, Semiconductor, Separation, Solar cells, Solvents, Spectroscopy, Ultraviolet-Visible spectroscopy

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