Investigation of ferroelectricity in poly(methyl vinylidene cyanide)

Matt Poulsen, Stephen Ducharme, A. V. Sorokin, Sahadeva Reddy, James M Takacs, Y. Wen, Jihee Kim, S. Adenwalla

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

The ferroelectric and piezoelectric properties of newly synthesized polymer systems have been studied. To date PVDF and its copolymers P(VDF-TrFE) have provided the bulk of the knowledge pertaining to ferroelectricity in polymers. Recently, ultrathin ferroelectric films of P(VDF-TrFE) 70:30 have been fabricated using the Langmuir-Blodgett technique [4]. In this study, various new polymers have been synthesized by chemically altering the PVDF structure. This alteration was performed in order to enhance the amphiphilic nature of the polymer and thus improve the LB film quality and control. Various chemical groups have been used to replace the electropositive hydrogen and electronegative fluorine found in the traditional PVDF chemical structure, including Nitrile, Ester, and Methyl groups. In all cases the resulting chemical structure provides for a net dipole moment directed from the electronegative side of the monomer to the electropositive side. However, to obtain ferroelectricity these microscopic dipoles must first pack in a manner such that a reversible macroscopic dipole is obtained. Both structural and dielectric studies have been performed on a number of newly synthesized systems. The structural properties of these new materials were probed using both temperature-dependent x-ray diffraction and differential scanning calorimetry, while dielectric properties were investigated using electric field and temperature-dependent capacitance and polarization measurements.

Original languageEnglish (US)
Pages (from-to)91-97
Number of pages7
JournalFerroelectrics, Letters Section
Volume32
Issue number3-4
DOIs
StatePublished - Dec 22 2005

Fingerprint

Ferroelectricity
ferroelectricity
Cyanides
cyanides
vinylidene
Polymers
polymers
dipoles
Ferroelectric films
Nitriles
Fluorine
Ultrathin films
Langmuir Blodgett films
nitriles
Dipole moment
Dielectric properties
Ferroelectric materials
fluorine
dielectric properties
Structural properties

Keywords

  • Ferroelectricity
  • Langmuir-Blodgett
  • Polymer

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Poulsen, M., Ducharme, S., Sorokin, A. V., Reddy, S., Takacs, J. M., Wen, Y., ... Adenwalla, S. (2005). Investigation of ferroelectricity in poly(methyl vinylidene cyanide). Ferroelectrics, Letters Section, 32(3-4), 91-97. https://doi.org/10.1080/07315170500311614

Investigation of ferroelectricity in poly(methyl vinylidene cyanide). / Poulsen, Matt; Ducharme, Stephen; Sorokin, A. V.; Reddy, Sahadeva; Takacs, James M; Wen, Y.; Kim, Jihee; Adenwalla, S.

In: Ferroelectrics, Letters Section, Vol. 32, No. 3-4, 22.12.2005, p. 91-97.

Research output: Contribution to journalArticle

Poulsen, M, Ducharme, S, Sorokin, AV, Reddy, S, Takacs, JM, Wen, Y, Kim, J & Adenwalla, S 2005, 'Investigation of ferroelectricity in poly(methyl vinylidene cyanide)', Ferroelectrics, Letters Section, vol. 32, no. 3-4, pp. 91-97. https://doi.org/10.1080/07315170500311614
Poulsen, Matt ; Ducharme, Stephen ; Sorokin, A. V. ; Reddy, Sahadeva ; Takacs, James M ; Wen, Y. ; Kim, Jihee ; Adenwalla, S. / Investigation of ferroelectricity in poly(methyl vinylidene cyanide). In: Ferroelectrics, Letters Section. 2005 ; Vol. 32, No. 3-4. pp. 91-97.
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