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530689

Sigma-Aldrich

Polyaniline (emeraldine base)

average Mw ~65,000

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 :
24877768
Nomenclature NACRES :
NA.23

Poids mol.

average Mw ~65,000

Niveau de qualité

100

Pf

>350 °C

Solubilité

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

λmax

331 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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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) is a 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

PANI forms a conjugating polymeric system that can be used for a variety of semiconducting applications. It can be used in the fabrication of a variety of devices which include fuel cells, light emitting diodes supercapacitors, chemical sensors and rechargeable batteries.
PAni-EB/Polyacrylonitrile (PAN) composite nanofibers were fabricated. The effect of the concentration of dopant and solvent on the morphology, conductivity and mechanical properties of the composites were studied. Preparation of PAni-EB/PAN nanoweb has also been reported.

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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Consulter la Bibliothèque de documents

Carbon nanotube/polyaniline composite as anode material for microbial fuel cells
Qiao Y, et al.
Journal of Power Sources, 170(1), 79-84 (2007)
Application of polyaniline (emeraldine base, EB) in polymer light-emitting devices.
Wang HL, et al.
Synthetic Metals, 78(1), 33-37 (1996)
Supercapacitors based on flexible graphene/polyaniline nanofiber composite films
Wu Q, et al.
ACS Nano, 4(4), 1963-1970 (2010)
A Polyaniline-Coated Sulfur/Carbon Composite with an Enhanced High-Rate Capability as a Cathode Material for Lithium/Sulfur Batteries
Li G, et al.
Advanced Energy Materials, 2(10), 1238-1245 (2012)
Polyanilines: a novel class of conducting polymers.
MacDiarmid AG and Epstein AJ
Faraday Discussions of the Chemical Society, 88(1-3), 317-332 (1989)
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