An electrochemical and optical investigation of polypyrrole/polyethyleneoxide latex particles

This paper reports that submicronic polypyrrole/polyethylene-oxide (PPy/PEO) latex particles have been produced using PEO as the steric stabilizer and either FeCl{sub 3} or K{sub 2}S{sub 2}O{sub 8} as the oxidizing agent for pyrrole. Scanning electron micrographs show that the two types of PPy/PEO l...

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Bibliographic Details
Published in:Journal of the Electrochemical Society 1991-10, Vol.138 (10), p.2930-2934
Main Authors: ØDEGARD, R, SKOTHEIM, T. A, LEE, H. S
Format: Article
Language:English
Subjects:
400201 - Chemical & Physicochemical Properties
400400 - Electrochemistry
400500 - Photochemistry
664200 - Spectra of Atoms & Molecules & their Interactions with Photons- (1992-)
ACETONITRILE
Applied sciences
ATOMIC AND MOLECULAR PHYSICS
AZOLES
CHEMICAL REACTIONS
CHEMISTRY
CHLORIDES
CHLORINE COMPOUNDS
ELASTOMERS
ELECTROCHEMISTRY
ELECTROLYTES
ELECTRON MICROSCOPY
Exact sciences and technology
Forms of application and semi-finished materials
HALIDES
HALOGEN COMPOUNDS
HETEROCYCLIC COMPOUNDS
INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY
IRON CHLORIDES
IRON COMPOUNDS
LATEX
Latex and emulsion
MICROSCOPY
NITRILES
OPTICAL PROPERTIES
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC POLYMERS
PHYSICAL PROPERTIES
Polymer industry, paints, wood
POLYMERS
PYRROLES
REDOX REACTIONS
RUBBERS
SCANNING ELECTRON MICROSCOPY
Technology of polymers
TRANSITION ELEMENT COMPOUNDS
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Description
Summary:This paper reports that submicronic polypyrrole/polyethylene-oxide (PPy/PEO) latex particles have been produced using PEO as the steric stabilizer and either FeCl{sub 3} or K{sub 2}S{sub 2}O{sub 8} as the oxidizing agent for pyrrole. Scanning electron micrographs show that the two types of PPy/PEO latex particles are of approximately the same size. From electrochemical and optical characterization (UV-vis spectra) of these particles, it was found that these latex particles can be electrochemically oxidized and reduced in an electrolyte of acetonitrile with 0.1M LiCF{sub 3}SO{sub 3}. The electrochemical and optical measurements indicate that the latex particles formed when using K{sub 2}S{sub 2}O{sub 8} as the oxidizing agent are more easily switched than the particles which are the result of applying FeCl{sub 3} as the oxidizing agent.
ISSN:0013-4651
1945-7111
DOI:10.1149/1.2085342