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476706

Sigma-Aldrich

Polyaniline (emeraldine base)

average Mw ~10,000

Synonyme(s) :

Emeraldine base polyaniline

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About This Item

Numéro CAS:
25233-30-1
Numéro MDL:
MFCD00241446
Code UNSPSC :
12352103
ID de substance PubChem :
24871293
Nomenclature NACRES :
NA.23

Poids mol.

average Mw ~10,000

Niveau de qualité

100

Solubilité

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

InChI

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

Clé InChI

LYCWKZFKTMHXQA-UHFFFAOYSA-N

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Description générale

Polyaniline (PAni) emeraldine salt can be prepared by protonation of PAni emeraldine base (PAni-EB). PAni-EB forms at pH>7. It′s mechanism against corrosive agents has been explained in a study.
Polyaniline (emeraldine base) (PANI) is an intrinsic conductive polymer which consists of a ring structure attached with nitrogen substituted derivatives. It has an emeraldine type of oxidation state that exists in the form of its base. It exhibits high corrosion resistance and can be used in the development of electrochemical devices.

Application

Polyaniline (PANI) forms a conjugating system that can be used for a variety of semiconducting applications. It is also widely used as protective coatings and hole transporting layers (HTLs) for organic electronics and chemical sensing.
The polymer acts as an anticorrosive additive. Epoxy paints may be modified using PAni-EB.

Caractéristiques et avantages

Undoped form of conducting polymer (non-conductive).

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

Eyeshields, Gloves, type N95 (US)

Certificats d'analyse (COA)

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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)
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)
Study of epoxy and alkyd coatings modified with emeraldine base form of polyaniline.
Armelin E, et al.
Progress in Organic Coatings, 58(4), 316-322 (2007)
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)
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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