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530689

Sigma-Aldrich

Polyaniline (emeraldine base)

average Mw ~65,000

Sinónimos:

Emeraldine base polyaniline

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About This Item

Número de CAS:
25233-30-1
MDL number:
MFCD00241446
UNSPSC Code:
12352103
PubChem Substance ID:
24877768
NACRES:
NA.23

mol wt

average Mw ~65,000

mp

>350 °C

solubility

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

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) 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.

Features and Benefits

Undoped form of conducting polymer (non-conductive).

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

Certificados de análisis (COA)

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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)
Conducting-polymer-based supercapacitor devices and electrodes
Snook GA, et al.
Journal of Power Sources, 196(1), 1-12 (2011)
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