Polypyrrole - Materials / Alfa Chemistry

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Polypyrrole

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Catalog Number

ACMA00003266

Product Name

Polypyrrole

Structure

Category

Bioelectronic Materials

Synonyms

PPy

Description

Polypyrrole (PPy) is a conductive and highly stable polymer, doped with proprietary organic acids. It may be prepared by standard electrochemical technique. PPy may also be prepared by reacting β-napthalene sulfonic acid (NSA) and ammonium peroxo-disulphate in aqueous medium. The charges on the surfaces can be easily modified by doping the polymer during its synthesis.Solubility and conductivity measurements of PPy doped with camphor sulfonic and dodecyl benzene sulfonic acid has been reported.
Polypyrrole(PPy) is a π-conjugated conductive polymer that can be electrochemically synthesized and deposited on a variety of surfaces. The deposited PPy can be used in a wide range of sensor based applications due to the following properties:
Ion exchange capacity.
Electrochromic effects.
Redox activity.
Corrosion resistant.
Catalytic activity.

IUPAC Name

1H-pyrrole

Molecular Weight

67.09g/mol

Molecular Formula

C4H5N

Canonical SMILES

C1=CNC=C1

InChI

InChI=1S/C4H5N/c1-2-4-5-3-1/h1-5H

InChI Key

KAESVJOAVNADME-UHFFFAOYSA-N

Boiling Point

129.7 °C;129.7 °C

Melting Point

-23.4 °C;Mp -24 °;-23.4 °C;-24°C

Flash Point

102 °F (39 °C) (CLOSED CUP)

Density

d204 0.97;0.9698 @ 20 °C;0.955-0.975

Solubility

0.67 M;45 mg/mL at 25 °C;Soluble in alcohol, ether and dilute acids. Also soluble in most organic chemicals.;Water solubility: 4.5X10+4 mg/l @ 25 °C;45 mg/mL at 25 °C;Soluble in most fixed oils; Slightly soluble in water;Soluble (in ethanol)

Application

Conducting polymers may be used in electronics, chemical sensors.
PPy can be used in the development of devices including:
conductive sensors for quality monitoring
blended with nanotubes for supercapacitors
nanowire actuators
biosensors for drug delivery
CO2 absorption materials

Storage

room temp

Color/Form

Colorless liquid when fresh;Yellowish or brown oil

Complexity

22.8

Composition

proprietary organic acids as dopant

Covalently-Bonded Unit Count

EC Number

240-327-8;203-724-7

Exact Mass

67.042199g/mol

Formal Charge

Heat of Vaporization

10.79 kcla/mol @ 25 °C

Heavy Atom Count

Log P

0.75 (LogP);0.75;log Kow = 0.75;0.75

MDL Number

MFCD00284347

MeSH Entry Terms

polypyrrole

Monoisotopic Mass

67.042199g/mol

NSC Number

72470;62777

Odor

Agreeable empyreumatic odor resembling that of chloroform

Other Experimental

Polymerizes under influence of acids and glycols; soln in dil hydrogen chloride yield pyrrole red, an amorphous, orange-colored substance;Decomposes in acid; Conversion factors: 1 mg/l= 3.64 ppm; 1 ppm= 2.74 mg/cu m;Hydroxyl radical rate constant = 1.1X10-10 cu m/molc-sec @ 25 °C;Henry's Law constant = 1.80X10-5 atm-cu m/mol @ 25 °C;Hygroscopic

Packaging

100 mL in poly bottle

Refractive Index

n20D 1.5085;Index of refraction: 1.5085 @ 20 °C/D;1.507-1.510

Rotatable Bond Count

Stability

DARKENS ON STANDING WITH EXPOSURE TO AIR.

UNII

86S1ZD6L2C

Vapor Density

2.31 (Air= 1)

Vapor Pressure