Ferroelectric polymers with large electrostriction; Based on semicrystalline VDF/TrFE/CTFE terpolymers

Tze-chiang Chung, A. Petchsuk

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

This paper discusses a new ferroelectric polymer with large electrostrictive response (-4%) at ambient temperature, which is based on a processable semicrystalline terpolymer comprising vinylidene difluoride (VDF), trifluoroethylene (TrFE), and chlorotrifluoroethylene (CTFE). This VDF/TrFE/CTFE terpolymer was prepared by a combination of bulk polymerization process and a borane/oxygen initiator at ambient temperature. The incorporated bulky CTFE units in the terpolymer seem to reduce the crystalline domain size and move the ferroelectric-paraelectric (FP) phase transition to near ambient temperature with a very small energy barrier. Some terpolymers exhibited common ferroelectric relaxor behaviors with a broad dielectric peak that shifted toward higher temperatures as the frequency increased, and a slim polarization hysteresis loop at near the dielectric peak (around ambient temperature) that gradually evolved into a normal ferroelectric polarization hysteresis loop with reduced temperature.

Original languageEnglish (US)
Pages (from-to)135-143
Number of pages9
JournalFerroelectrics, Letters Section
Volume28
Issue number5-6
StatePublished - Dec 1 2001

Fingerprint

Electrostriction
difluorides
electrostriction
Terpolymers
vinylidene
ambient temperature
Ferroelectric materials
Polymers
polymers
hysteresis
Hysteresis loops
Temperature
boranes
polarization
initiators
Polarization
Boranes
polymerization
Energy barriers
chlorotrifluoroethylene

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

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abstract = "This paper discusses a new ferroelectric polymer with large electrostrictive response (-4{\%}) at ambient temperature, which is based on a processable semicrystalline terpolymer comprising vinylidene difluoride (VDF), trifluoroethylene (TrFE), and chlorotrifluoroethylene (CTFE). This VDF/TrFE/CTFE terpolymer was prepared by a combination of bulk polymerization process and a borane/oxygen initiator at ambient temperature. The incorporated bulky CTFE units in the terpolymer seem to reduce the crystalline domain size and move the ferroelectric-paraelectric (FP) phase transition to near ambient temperature with a very small energy barrier. Some terpolymers exhibited common ferroelectric relaxor behaviors with a broad dielectric peak that shifted toward higher temperatures as the frequency increased, and a slim polarization hysteresis loop at near the dielectric peak (around ambient temperature) that gradually evolved into a normal ferroelectric polarization hysteresis loop with reduced temperature.",
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Ferroelectric polymers with large electrostriction; Based on semicrystalline VDF/TrFE/CTFE terpolymers. / Chung, Tze-chiang; Petchsuk, A.

In: Ferroelectrics, Letters Section, Vol. 28, No. 5-6, 01.12.2001, p. 135-143.

Research output: Contribution to journalArticle

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