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576379

Sigma-Aldrich

Polyaniline (emeraldine base)

average Mw ~100,000

Synonyme(s) :

Emeraldine base polyaniline

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About This Item

Numéro CAS:
25233-30-1
Numéro MDL:
MFCD00241446
Code UNSPSC :
12352103
Nomenclature NACRES :
NA.23

Poids mol.

average Mw ~100,000

Niveau de qualité

100

Conductivité

1 × 10-9 S/cm (pressed pellet, ASTM F8)

Solubilité

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

λmax

324 nm

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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Catégories apparentées

Description générale

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.

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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