Doctoral Dissertations
Abstract
"Polyaniline (PAni), an inherently conducting polymer, was synthesized with different intrinsic oxidation states from emeraldine salt (ES) and emeraldine base (EB) to leucoemeraldine base (LM). Free-standing membranes and thin film bi-layers of metal- polyaniline were fabricated by magnetron sputter deposition of aluminum, copper, titanium and iron onto the polyaniline films. Metal-polyaniline samples were analyzed by scanning electron microscopy (SEM) and transmission electron microscopy (TEM) to investigate the microstructures of specimens. Auger electron spectroscopy (AES) and X- ray photoelectron spectroscopy (XPS) were employed to study the chemical bonding and interactions between deposited metals and polyaniline at the interfaces. Acoustic transmission properties of metal-polyaniline membranes were characterized by measuring the insertion loss as a function of acoustic frequencies and membrane geometry in various testing environments. Results indicated that the type of metal and the intrinsic oxidation state of the polyaniline influenced the structures and chemistry of the metal- polyaniline interfaces and membranes. Distinct interaction between metals and polyaniline in emeraldine salt form was observed, however, there was no evidence of direct interactions of the metals with emeraldine base and leucoemeraldine base polyaniline. Acoustic measurements of metal-polyaniline membranes demonstrated that the physical properties and geometry of the samples affected acoustic transmission between 100 Hz and 8,000 Hz"--Abstract, page iii.
Advisor(s)
O'Keefe, Matthew
Committee Member(s)
Schuman, Thomas P.
Kohser, Ronald A.
Miller, F. Scott, 1956-
O'Keefe, T. J. (Thomas J.)
Department(s)
Materials Science and Engineering
Degree Name
Ph. D. in Metallurgical Engineering
Publisher
University of Missouri--Rolla
Publication Date
Summer 2004
Journal article titles appearing in thesis/dissertation
- Microstructural characterization of sputter deposited metal-polyaniline bi-layers by SEM and TEM analysis
- Chemical and electrical characterization of sputter deposited metal-polyaniline bi-layers
- Acoustic characterization of free-standing polyaniline membranes and metal-polyaniline bi-layers
Pagination
xii, 105 pages
Note about bibliography
Includes bibliographical references.
Rights
© 2004 Yan Liu, All rights reserved.
Document Type
Dissertation - Restricted Access
File Type
text
Language
English
Subject Headings
Thin filmsConducting polymersSurfaces (Technology) -- ResearchMembranes (Technology) -- Research
Thesis Number
T 8564
Print OCLC #
62098641
Recommended Citation
Liu, Yan, "Synthesis and characterization of metal-polyaniline thin films and membranes" (2004). Doctoral Dissertations. 1566.
https://scholarsmine.mst.edu/doctoral_dissertations/1566
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Comments
This project has been financially supported by the Defense Advanced Research Projects Agency (DARPA) through the Army Research Laboratory (DAAD-19-00-1 - 0176).