Preparation and Characterization of Polypyrrolepolyethylene Glycol Conducting Polymer Composite Films

Polypyrrole-polyethylene glycol (PPy-PEG) conducting polymer composite films were electrochemically prepared on Indium Tin Oxide (ITO) glass electrode from an aqueous solution containing pyrrole monomer, p-toluene sulfonate dopant and poly (ethylene glycol) as an insulating polymer. The PPy-PEG c...

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Main Author:	Lim, Mei Yee
Format:	Thesis
Language:	English English
Published:	2007
Subjects:	Anthology films Electrochemical analysis
Online Access:	http://psasir.upm.edu.my/id/eprint/5026/1/FS_2007_32.pdf
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spelling	my-upm-ir.50262013-05-27T07:19:52Z Preparation and Characterization of Polypyrrolepolyethylene Glycol Conducting Polymer Composite Films 2007 Lim, Mei Yee Polypyrrole-polyethylene glycol (PPy-PEG) conducting polymer composite films were electrochemically prepared on Indium Tin Oxide (ITO) glass electrode from an aqueous solution containing pyrrole monomer, p-toluene sulfonate dopant and poly (ethylene glycol) as an insulating polymer. The PPy-PEG composite films prepared from different process conditions were characterized by Fourier Transform infrared (FT-IR) spectroscopy, electrical conductivity measurement, photoacoustic spectroscopy, X-ray diffraction (XRD) analysis and optical microscopy. The FT-IR study of PPy-PEG composite films shows the evidence of the incorporation of PEG in PPy structure forming PPy-PEG composite films. The highest electrical conductivity of 61 S/cm and thermal diffusivity of 7.88 x 10-7 m2s-1 were shown by the PPy-PEG composite film prepared from 0.20 M pyrrole, 0.10 M p-toluene sulfonate and 1 x 10-3 M PEG at 1.20 volt (vs SCE) at room temperature among all the PPy-PEG composite films produced. The conductivity data of PPy-PEG shows that with the increase in PEG concentration in the pyrrole solution, the electrical conductivity of the prepared PPy-PEG film increased up to certain level due to the increase in conjugation length and later it decreased with further increase in PEG concentration, which is again linked with the decrease in conjugation length. The measured values of thermal diffusivity and electrical conductivity for the PPy- PEG composites films showed that there was a correlation between thermal diffusivity and electrical conductivity. Both thermal diffusivity and electrical conductivity showed a similar peak for the same process condition in respective composite films. The XRD results of PPy-PEG composite films showed that the films were amorphous with very little order. The optical micrographs of PPy-PEG showed the globular surface morphology. The changes in globular surface morphology with the change in process condition of the film preparation indicated that the process parameters used to prepare the composite films had a strong influence over the surface morphology. Anthology films Electrochemical analysis 2007 Thesis http://psasir.upm.edu.my/id/eprint/5026/ http://psasir.upm.edu.my/id/eprint/5026/1/FS_2007_32.pdf application/pdf en public masters Universiti Putra Malaysia Anthology films Electrochemical analysis Science English
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English English
topic	Anthology films Electrochemical analysis
spellingShingle	Anthology films Electrochemical analysis Lim, Mei Yee Preparation and Characterization of Polypyrrolepolyethylene Glycol Conducting Polymer Composite Films
description	Polypyrrole-polyethylene glycol (PPy-PEG) conducting polymer composite films were electrochemically prepared on Indium Tin Oxide (ITO) glass electrode from an aqueous solution containing pyrrole monomer, p-toluene sulfonate dopant and poly (ethylene glycol) as an insulating polymer. The PPy-PEG composite films prepared from different process conditions were characterized by Fourier Transform infrared (FT-IR) spectroscopy, electrical conductivity measurement, photoacoustic spectroscopy, X-ray diffraction (XRD) analysis and optical microscopy. The FT-IR study of PPy-PEG composite films shows the evidence of the incorporation of PEG in PPy structure forming PPy-PEG composite films. The highest electrical conductivity of 61 S/cm and thermal diffusivity of 7.88 x 10-7 m2s-1 were shown by the PPy-PEG composite film prepared from 0.20 M pyrrole, 0.10 M p-toluene sulfonate and 1 x 10-3 M PEG at 1.20 volt (vs SCE) at room temperature among all the PPy-PEG composite films produced. The conductivity data of PPy-PEG shows that with the increase in PEG concentration in the pyrrole solution, the electrical conductivity of the prepared PPy-PEG film increased up to certain level due to the increase in conjugation length and later it decreased with further increase in PEG concentration, which is again linked with the decrease in conjugation length. The measured values of thermal diffusivity and electrical conductivity for the PPy- PEG composites films showed that there was a correlation between thermal diffusivity and electrical conductivity. Both thermal diffusivity and electrical conductivity showed a similar peak for the same process condition in respective composite films. The XRD results of PPy-PEG composite films showed that the films were amorphous with very little order. The optical micrographs of PPy-PEG showed the globular surface morphology. The changes in globular surface morphology with the change in process condition of the film preparation indicated that the process parameters used to prepare the composite films had a strong influence over the surface morphology.
format	Thesis
qualification_level	Master's degree
author	Lim, Mei Yee
author_facet	Lim, Mei Yee
author_sort	Lim, Mei Yee
title	Preparation and Characterization of Polypyrrolepolyethylene Glycol Conducting Polymer Composite Films
title_short	Preparation and Characterization of Polypyrrolepolyethylene Glycol Conducting Polymer Composite Films
title_full	Preparation and Characterization of Polypyrrolepolyethylene Glycol Conducting Polymer Composite Films
title_fullStr	Preparation and Characterization of Polypyrrolepolyethylene Glycol Conducting Polymer Composite Films
title_full_unstemmed	Preparation and Characterization of Polypyrrolepolyethylene Glycol Conducting Polymer Composite Films
title_sort	preparation and characterization of polypyrrolepolyethylene glycol conducting polymer composite films
granting_institution	Universiti Putra Malaysia
granting_department	Science
publishDate	2007
url	http://psasir.upm.edu.my/id/eprint/5026/1/FS_2007_32.pdf
_version_	1747810334185357312

Preparation and Characterization of Polypyrrolepolyethylene Glycol Conducting Polymer Composite Films

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