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Proceedings Paper

Structure-property study of piezoelectricity in polyimides
Author(s): Zoubeida Ounaies; Cheol Park; Joycelyn S. Harrison; Joseph G. Smith; Jeffrey A. Hinkley
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Paper Abstract

High performance piezoelectric polymers are of interest to NASA as they may be useful for a variety of sensor applications. Over the past few years research on piezoelectric polymers has led to the development of promising high temperature piezoelectric responses in some novel polyimides. In this study, a series of polyimides have been studied with systematic variations in the diamine monomers which comprise the polyimide while holding the dianhydride constant. The effect of structural changes, including variations in the nature and concentration of dipolar groups, on the remanent polarization and piezoelectric coefficient is examined. Fundamental structure-piezoelectric property insight will enable the molecular design of polymers possessing distinct improvements over state-of-the-art piezoelectric polymers including enhanced polarization, polarization stability at elevated temperatures, and improved processability.

Paper Details

Date Published: 28 May 1999
PDF: 8 pages
Proc. SPIE 3669, Smart Structures and Materials 1999: Electroactive Polymer Actuators and Devices, (28 May 1999); doi: 10.1117/12.349674
Show Author Affiliations
Zoubeida Ounaies, National Research Council (United States)
Cheol Park, National Research Council (United States)
Joycelyn S. Harrison, NASA Langley Research Ctr. (United States)
Joseph G. Smith, NASA Langley Research Ctr. (United States)
Jeffrey A. Hinkley, NASA Langley Research Ctr. (United States)

Published in SPIE Proceedings Vol. 3669:
Smart Structures and Materials 1999: Electroactive Polymer Actuators and Devices
Yoseph Bar-Cohen, Editor(s)

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