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556459

Sigma-Aldrich

Polyaniline (emeraldine base)

average Mw ~5,000

Synonym(s):

Emeraldine base polyaniline

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About This Item

CAS Number:
25233-30-1
MDL number:
MFCD00241446
UNSPSC Code:
12352103
PubChem Substance ID:
24879559
NACRES:
NA.23

mol wt

average Mw ~5,000

solubility

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

λmax

~325 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

Magnetic susceptibility of emeraldine base polyaniline was reported.
Polyaniline (emeraldine base) (PANI) is anintrinsic conductive polymer which consists of a ring structure attached with nitrogen substituted derivatives. It has an emeraldine type oxidation state that exists in the form of its base. It can be prepared by deprotonation of emeraldine hydrochloric acid and ammonium hydroxide. It is mainly used in the development of electrochemical devices.

Application

Emeraldine base polyaniline may be used as a corrosion protection undercoat on steel and iron. It may be used as a hole transporting layer in polymer light emitting diodes.
PANI forms a conjugating system that can be used in semiconducting applications. It can be used in a variety of other applications which include protective coating, hole transporting layer for organic electronics and chemical sensing.

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

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Corrosion protection of iron/steel by emeraldine base polyaniline: an X-ray photoelectron spectroscopy study
Fahlman M, et al.
Synt. Metals, 85(1-3), 1323-1326 (1997)
Suitability of emeraldine base polyaniline-PVA composite film for carbon dioxide sensing.
Irimia-Vladu M and Fergus JW
Synthetic Metals, 156(21-24), 1401-1407 (2006)
Corrosion protection of iron/steel by emeraldine base polyaniline: an X-ray photoelectron spectroscopy study.
Fahlman M, et al.
Synthetic Metals, 85(1-3), 1323-1326 (1997)
A magnetic susceptibility study of emeraldine base polyaniline`
Kahol PK, et al.
Synt. Metals, 140(2-3), 261-267 (2004)
Emeraldine Base Polyaniline as an Alternative to Poly(3,4-ethylenedioxythiophene) as a Hole-Transporting Layer
Higgins RWT, et al.
Advances in Functional Materials, 11(6), 407-402 (2001)
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