TITLE

Highly electrostrictive poly(vinylidene fluoride–trifluoroethylene) networks

AUTHOR(S)
Casalini, R.; Roland, C. M.
PUB. DATE
October 2001
SOURCE
Applied Physics Letters;10/15/2001, Vol. 79 Issue 16, p2627
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We report greatly improved electromechanical performance from a poly(vinylidene fluoride–trifluoroethylene) copolymer by chemical cross linking. Curing with an organic peroxide in combination with a free-radical trap, followed by crystallization, yields a ferroelectric network exhibiting a high electrostrictive response. The electric-field-induced strains were measured at low frequency using an air gap capacitance method and by a noninterferometric optical technique. At electric fields as low as 9 MV/m, longitudinal strains of 12% are obtained. This is more than two orders of magnitude better than conventional vinylidene fluoride materials, and more than an order of magnitude larger than the best results reported to date on any fluoropolymer. Since the mechanical modulus of the network is high (∼0.5 GPa), this work demonstrates the potential for extending the range of utility for polymer-based electromechanical materials. © 2001 American Institute of Physics.
ACCESSION #
5319193

 

Related Articles

  • Electromechanical properties of electrostrictive poly(vinylidene fluoride–trifluoroethylene) copolymer. Zhao, Xing-Zhong; Bharti, Vivek; Zhang, Q. M.; Romotowski, T.; Tito, F.; Ting, R. // Applied Physics Letters;10/5/1998, Vol. 73 Issue 14 

    We report a large electrostrictive strain in electron irradiated poly(vinylidene fluoride–trifluoroethylene) copolymer at a composition with 65 mol % vinylidene fluoride, which also exhibits a large ratio of strain to applied field (∼275 pm/V). The strain response is nearly...

  • Pulse poling of side-chain and crosslinkable copolymers. Michelotti, Francesco; Toussaere, Eric // Journal of Applied Physics;12/1/1997, Vol. 82 Issue 11, p5728 

    Models the growth of the macroscopic second-order nonlinear optical properties of side-chain and crosslinkable copolymer species. Rotational diffusion of nonlinear diazo-dye dipoles; Application of a periodic electric poling field; Evaluation of the temporal growth of the second-order nonlinear...

  • Confined thin film diblock copolymer in the presence of an electric field. Ashok, B.; Muthukumar, M.; Russell, T. P. // Journal of Chemical Physics;7/15/2001, Vol. 115 Issue 3 

    We have studied theoretically the effect of an external electric field on the equilibrium properties of lamellar and cylindrical assembly in confined diblock copolymers. The critical electric field at which a vertical morphology of lamellae is preferred over a horizontal configuration is found...

  • Electric energy storage properties of poly(vinylidene fluoride). Wenjing Li; Qingjie Meng; Yuansuo Zheng; Zhicheng Zhang; Weimin Xia; Zhuo Xu // Applied Physics Letters;5/10/2010, Vol. 96 Issue 19, p192905 

    High discharged energy density observed in poly(vinylidene fluoride) (PVDF) based copolymers has attracted considerable research interests in the past years. Crystalline properties exhibit great influence on their dielectric and energy storage properties. To understand how crystalline properties...

  • High electric field resistivity and pyroelectric properties of vinylidene fluoride-trifluoroethylene copolymer. Olsen, Randall B.; Bruno, David A.; Briscoe, Joseph M.; Jacobs, Everett W. // Journal of Applied Physics;10/15/1985, Vol. 58 Issue 8, p2854 

    Determines the high electric field resistivity and pyroelectric properties of vinylidene fluoride-trifluoroethylene copolymer. Measurement of electric displacement changes which result from temperature changes of the copolymer; Resistivity of the copolymer; Discussion on the resistivity and...

  • Conjugation length dependent transport in conducting polymers from a resistor network model. Baughman, R. H.; Shacklette, L. W. // Journal of Chemical Physics;6/15/1989, Vol. 90 Issue 12, p7492 

    The effect of conjugation length (L) upon electronic conductivity components of conducting polymers is derived using a generalized resistor network model. Results are obtained for polymers which contain a statistical distribution of defects which limit conjugation, as well as for regular...

  • Comparative study of hole transport in polyspirobifluorene polymers measured by the charge-generation layer time-of-flight technique. Laquai, Frédéric; Wegner, Gerhard; Chan Im; Bässler, Heinz; Heun, Susanne // Journal of Applied Physics;1/15/2006, Vol. 99 Issue 2, p023712 

    Hole transport in a polyspirobifluorene homopolymer and a statistical polyspirobifluorene-triarylamine copolymer has been studied in detail employing the charge-generation layer time-of-flight (TOF) technique over a wide range of electric fields and temperatures. Both materials exhibit...

  • Giant electrocaloric effect in ferroelectric poly(vinylidenefluoride-trifluoroethylene) copolymers near a first-order ferroelectric transition. Li, Xinyu; Qian, Xiao-Shi; Gu, Haiming; Chen, Xiangzhong; Lu, S. G.; Lin, Minren; Bateman, Fred; Zhang, Q. M. // Applied Physics Letters;9/24/2012, Vol. 101 Issue 13, p132903 

    We present directly measured electrocaloric effect (ECE) from the poly(vinylidenefluoride-trifluoroethylene) 65/35 mol. % copolymer. The data reveal a large difference in the ECE between that measured in applying and in removing the electric field. The difference is significantly reduced by...

  • Epitaxial self-assembly of block copolymers on lithographically defined nanopatterned substrates. Ouk Kim, Sang; Solak, Harun H.; Stoykovich, Mark P.; Ferrier, Nicola J.; de Pablo, Juan J.; Nealey, Paul F. // Nature;7/24/2003, Vol. 424 Issue 6947, p411 

    Parallel processes for patterning densely packed nanometre-scale structures are critical for many diverse areas of nanotechnology. Thin films of diblock copolymers[SUP1-11] can self-assemble into ordered periodic structures at the molecular scale (∼5 to 50 nm), and have been used as...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics