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556378

Sigma-Aldrich

Polyaniline (emeraldine base)

average Mw ~20,000

Synonym(s):

Emeraldine base polyaniline

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About This Item

CAS Number:
MDL number:
UNSPSC Code:
12352103
PubChem Substance ID:
NACRES:
NA.23

mol wt

average Mw ~20,000

solubility

m-cresol: soluble
DMAC: soluble
DMF: soluble
DMSO: soluble
NMP: soluble

λmax

328 nm

InChI

1S/C3H4BrN3.ClH/c1-2-3(4)6-7-5-2;/h1H3,(H,5,6,7);1H

InChI key

LYCWKZFKTMHXQA-UHFFFAOYSA-N

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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 a conductive polymer that can be chemically synthesized from aniline by oxidative polymerization of ammonium peroxydisulfate in acidic solution. It is widely used in electronics and optoelectronic applications.

Application

PANI-EB is a conjugating polymer that finds applications in organic light emitting diodes (OLEDs), anticorrosive coatings, chemical sensors and solar cells.

Features and Benefits

Undoped form of conducting polymer (non-conductive).

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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Anticorrosion performances of epoxy coatings modified with polyaniline: A comparison between the emeraldine base and salt forms
Armelin E, et al.
Progress in Organic Coatings, 65(1), 88-93 (2009)
Polyaniline nanofibers: facile synthesis and chemical sensors
Huang J, et al.
Journal of the American Chemical Society, 125(2), 314-315 (2003)
Study of epoxy and alkyd coatings modified with emeraldine base form of polyaniline.
Armelin E, et al.
Progress in Organic Coatings, 58, 316-322 (2007)

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