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Interfacial Layer - A New Mechanism for Electromechanical Response

Published online by Cambridge University Press:  01 February 2011

Zhimin Li  and
Z.-Y. Cheng
Zhimin Li
Affiliation:
Materials Engineering, Auburn University, Auburn, AL 36849, USA
Z.-Y. Cheng
Affiliation:
Materials Engineering, Auburn University, Auburn, AL 36849, USA
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Abstract

Electric field induced phase transition has been used to explain the high strain response in some PVDF-based EAP. However, it is hard to understand some features (such as the relationship between the strain and the preload) of elastomers - an important type of EAPs. In this paper, we reported the study of recrystallization on high-energy-electron irradiated P(VDF-TrFE) copolymer. The morphology and structure as well as the structural transformation in the recrystallized copolymers were studied by means of X-ray diffraction, DSC, FTIR, and polarization measurements. The effect of crosslinking induced by the irradiation is discussed. The results suggest that a new interface layer existed in the recrystallized polymers. The partially ordered interfacial layer is a novel micro-origin of a high polarization obtained in an EAP. Based on this concept, the effect of preload on the E-M performance of the elastomers can be well explained. A new method to develop high performance electroactive polymer is outlined by using the interface state.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 856: Symposium BB – Multicomponent Polymer Systems-Phase Behavior, Dynamics, and Applications , 2004 , BB12.10
Copyright
Copyright © Materials Research Society 2005

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References

REFERENCES

1. Ramotowski, T., Hughes, O. R., Kavarnos, G., Gleason, K., Zhang, Q., and Ting, R., Mat. Res. Soc. Symp. Proc., Materials Research Society 698, EE561-EE567 (2002).Google Scholar
2. Mabboux, P. Y. and Gleason, K. K., Journal of Fluorine Chemistry 113, 27–35 (2002).Google Scholar
3. Bharti, V., Xu, H. S., Shanthi, G., Zhang, Q. M., and Liang, K. M., Journal of Applied Physics 87, 452–461 (2000).Google Scholar
4. Buckley, G. S. and Roland, C. M., Applied Physics Letters 78, 622–624 (2001).Google Scholar
5. Casalini, R. and Roland, C. M., Journal of Polymer Science Part B-Polymer Physics 40, 1975–1984 (2002).Google Scholar
6. Garrett, J. T., Roland, C. M., Petchsuk, A., and Chung, T. C., Applied Physics Letters 83, 1190–1192 (2003).Google Scholar
7. Roland, C. M., Garrett, J. T., Casalini, R., Roland, D. F., Santangelo, P. G., and Qadri, S. B., Chemistry of Materials 16, 857–861 (2004).Google Scholar
8. Cheng, Z. Y., Olson, D., Xu, H. S., Xia, F., Hundal, J. S., Zhang, Q. M., Bateman, F. B., Kavarnos, G. J., and Ramotowski, T., Macromolecules 35, 664–672 (2002).Google Scholar
9. Alexander, L. E., X-ray diffraction Methods in polymer science (Wiley-Interscience, New York, 1969).Google Scholar
10. Murthy, N. S. and Minor, H., Polymer 31, 996–1002 (1990).Google Scholar
11. Osaki, S. and Ishida, Y., Journal of Polymer Science Part B-Polymer Physics 13, 1071–1083 (1975).Google Scholar
12. Xu, H. S., Cheng, Z. Y., Olson, D., Mai, T., Zhang, Q. M., and Kavarnos, G., Applied Physics Letters 80, 3018–3018 (2002).Google Scholar
13. Ren, W., Yang, G., Mukherjee, B. K., and Szabo, J. P., in Electroactive Polymer Actuators and Devices (EAPAD), San Diego, Smart Structures and Materials, 2004 (SPIE).Google Scholar