Influence of Dipolar Interactions in Ferroelectric Vinylidene Fluoride Copolymers on their Structure and Low-Temperature Molecular Mobility

Valentin V. Kochervinskii; I.A. Malyshkina; A.S. Pavlov; N.P. Bessonova; N.V. Kozlova; N.A. Shmakova

doi:10.4028/www.scientific.net/KEM.605.503

Paper Titles

Structure and Epitaxial Behavior of Rutile TiO₂ Thin Films Prepared by DC Magnetron Sputtering and Ex-Situ Annealing
p.487

Enhanced Sensitivity of Pt/NiO Gate Based AlGaN/GaN C-HEMT Hydrogen Sensor
p.491

The Study of Graphene Gas Sensor
p.495

Influence of Metastable States on Electrophysical Properties in Ferroelectric Crystalline Polymers
p.499

Influence of Dipolar Interactions in Ferroelectric Vinylidene Fluoride Copolymers on their Structure and Low-Temperature Molecular Mobility
p.503

Properties of Multilayer NTC Perovskite Thermistors Prepared by Tape Casting, Lamination and Cofiring
p.507

Drift-Like Terms Minimization in the Responses of a Generic Tin Oxide Gas Sensor
p.511

Gold and Silver Contacts on Tin Oxide Thin Films Produced by Spray Pyrolysis on SiO₂ Substrates
p.515

Study on the Magnetic Hysteresis of Terfenol-D Using New Hybrid Model
p.519

HomeKey Engineering MaterialsKey Engineering Materials Vol. 605Influence of Dipolar Interactions in Ferroelectric...

Influence of Dipolar Interactions in Ferroelectric Vinylidene Fluoride Copolymers on their Structure and Low-Temperature Molecular Mobility

Abstract:

Dielectric, IR spectroscopy and DSC measurements were made over a wide range of temperatures and frequencies in copolymers of vinylidene fluoride (VDF) with tetra- (TFE) and trifluoroethylene (TrFE) of different composition. Experimental results show that decrease of VDF content in VDF/TFE copolymers is accompanied by decrease of activation energy of kinetic units in the glassy state, though relaxation times of cooperative mobility in amorphous phase differ insignificantly. Substitution of TFE with TrFE in copolymers with the same VDF content increases activation energy values for the local mobility. The results of IR spectroscopy suggest that VDF/TFE copolymers with low VDF content have lower crystallinity, which may be explained by the secondary crystallization processes and absence of long isomers in planar zigzag conformation.

You might also be interested in these eBooks

Materials and Applications for Sensors and Transducers III

View Preview

Info:

Periodical:

Key Engineering Materials (Volume 605)

Pages:

503-506

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.605.503

Citation:

Cite this paper

Online since:

April 2014

Authors:

Valentin V. Kochervinskii*, I.A. Malyshkina, A.S. Pavlov, N.P. Bessonova, N.V. Kozlova, N.A. Shmakova

Keywords:

Ferroelectric, Molecular Mobility, Relaxation Transitions, Structure

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

* - Corresponding Author

References

[1] Т.Т. Wang, J.M. Herbert and A.M. Glass (Eds): The Application of Ferroelectric Polymers (Blackie, Glasgow 1988)

Google Scholar

[2] H.S. Nalva (Ed.): Ferroelectric Polymers – Chemistry, Physics and Applications (Marcel Dekker Inc., New York 1995)

Google Scholar

[3] V.V. Kochervinskii: Usp. Khim. Vol. 63 (1994), p.383

Google Scholar

[4] V.V. Kochervinskii: Polym. Sci. B. Vol. 47 (2005), p.75

Google Scholar

[5] V.V. Kochervinskii, V.A. Glukhov, V.G. Sokolov, V.F. Romadin, E.M. Murasheva, Yu.K. Ovchinnikov, N.A. Trofimov and B.V. Lokshin: Vysokomol. Soedin. A. Vol. 30 (1988), p.2100

DOI: 10.1016/0032-3950(88)90067-6

Google Scholar

[6] V.V. Kochervinskii and E.M. Murasheva: Vysokomol. Soedin. A. Vol. 33 (1991), p. (2096)

Google Scholar

[7] T.A. Ezguerra, F. Liu, R.H. Boyd and B.S. Hsiao: Polymer. Vol. 38 (1997), p.5793.

Google Scholar

[8] A. Nogales, T.A. Ezguerra, G.M. Garsia and F.J. Balta-Calleja: J. Polymer Sci. B. Polym Phys. Vol. 27 (1999), p.37

Google Scholar

[9] C. Alvarez, I. Sics, A. Nogales, Z. Denchev, S.S. Funari and T.A. Ezguerra: Polymer, Vol. 45 (2003), p.3953

Google Scholar

[10] R. Kolb, C. Wutz, N. Stribeck, G.von Krosigk and C. Riekel: Polymer Vol. 42 (2001), p.5257

DOI: 10.1016/s0032-3861(00)00920-4

Google Scholar

[11] M. Neidhofer, F. Beaume, L. Ibos, A. Bernes and C. Lacabanne: Polymer Vol. 45 (2004), p.1679

Google Scholar