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576379 Sigma-Aldrich

Polyaniline (emeraldine base)

average Mw ~100,000

Synonym: Emeraldine base polyaniline

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Properties

Related Categories Emeraldine Bases, Materials Science, Materials for Buffer Layer, Organic Photovoltaic (OPV) Materials, Organic and Printed Electronics,
Quality Level   100
mol wt   average Mw ~100,000
conductivity   1 × 10-9 S/cm (pressed pellet, ASTM F8)
solubility   m-cresol: soluble
  DMAC: soluble
  DMF: soluble
  DMSO: soluble
  NMP: soluble
λmax   324 nm

Description

General description

Polyaniline (PAni) emeraldine salt can be prepared by protonation of PAni emeraldine base (PAni-EB). PAni-EB forms at pH>7. Its mechanism against corrosive agents has been explained in a study.

Polyaniline (emeraldine base) (PANI-EB) is an intrinsically conducting polymer (ICP) that can be formed by oxidative polymerization of aniline. Emeraldine base contains oxidized diimine and reduced diamine. PANI can be modified into the conjugating emeraldine base form by p-type doping with protonic acid.

Application

PANI-EB can form a nanocomposite with multi-walled carbon nanotubes (MWCNTs) that can be used to functionalize glassy carbon electrodes for the electro-sensitive detection of cadmium (Cd(II)) and lead (Pb(II)). Carbon nanofibers may be reinforced on PANI-EB to yield a specific capacitance of 95 F/g and a 92% retention over 3000 cycles as observed in supercapacitor applications. It may be used with heptamethyleneimine as an inhibitor to form stable fuel cell membranes.

Packaging

5 g in poly bottle

Features and Benefits

Undoped form of conducting polymer (non-conductive).

Safety & Documentation

Safety Information

Personal Protective Equipment 
RIDADR 
NONH for all modes of transport
WGK Germany 
WGK 3
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable

Documents

Certificate of Analysis (COA)

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Protocols & Articles
Peer-Reviewed Papers
15

References

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