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Proceedings Paper

Electromechanical properties and molecular conformation in P(VDF-TrFE)-based terpolymer
Author(s): Zhong-Yang Cheng; Hengfeng Li; Feng Xia; Haisheng Xu; Dana Olson; Cheng Huang; Qi Ming Zhang; G. J. Kavarnos
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Paper Abstract

The recent discovery of high electromechanical performance in high-energy electron irradiated P(VDF-TrFE) copolymers opens a new avenue for developing high performance electroactive polymers. From basic materials consideration, it is expected that one can achieve high electromechanical performance by means of nonirradiation approach, such as introducing ter-monomer to form PVDF based terpolymer. The basic requirement for the ter-monomer is discussed in order to achieve a high electromechanical performance in P(VDF-TrFE) based terpolymer. Based on the conclusion, P(VDF-TrFE-CFE) terpolymer has been synthesized and the experimental results indicate that the terpolymer exhibits better electromechanical performance compared with irradiated copolymers. For example, both the electric induced strain and Young's modulus in P(VDF-TrFE-CFE) terpolymer could be higher than that in irradiated copolymers. X-ray diffraction, DSC and FTIR were employed to determine the structure and molecule conformation. Furthermore, a serious theoretical simulation was carried out for P(VDF-TrFE) based terpolymers with different ter-monomers. The results show that indeed the terpolymer with CFE favors gauche conformation, consistent with the experimental results.

Paper Details

Date Published: 11 July 2002
PDF: 9 pages
Proc. SPIE 4695, Smart Structures and Materials 2002: Electroactive Polymer Actuators and Devices (EAPAD), (11 July 2002); doi: 10.1117/12.475162
Show Author Affiliations
Zhong-Yang Cheng, The Pennsylvania State Univ. (United States)
Hengfeng Li, The Pennsylvania State Univ. (United States)
Feng Xia, The Pennsylvania State Univ. (United States)
Haisheng Xu, The Pennsylvania State Univ. (United States)
Dana Olson, The Pennsylvania State Univ. (United States)
Cheng Huang, The Pennsylvania State Univ. (United States)
Qi Ming Zhang, The Pennsylvania State Univ. (United States)
G. J. Kavarnos, Univ. of Rhode Island (United States)


Published in SPIE Proceedings Vol. 4695:
Smart Structures and Materials 2002: Electroactive Polymer Actuators and Devices (EAPAD)
Yoseph Bar-Cohen, Editor(s)

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