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Dielectric dispersion of ultrathin polymer Langmuir-Blodgett films

A.M. Lotonov$^1$, A.V. Vorobyev$^1$, N.D. Gavrilova$^1$, K.A. Verkhovskaya$^2$, S.G. Yudin$^2$

Moscow University Physics Bulletin 2011. 66. N 6. P. 557

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Annotation

Dielectric dispersion is studied in films made of vinylidene fluoride/trifluoroethylene copolymer [P(VDF/TrFE)], which are obtained by the Langmuir-Blodgett technique in the temperature range from ${-}$90 to ${+}$132$^0$C. The thickness of the films studied is ${\sim}$7 nm. A glass transition is observed in the temperature range from −40 to −50°C; this indicates the presence of an amorphous phase in the ultrathin Langmuir-Blodgett films.

Received: 2011 June 7
Approved: 2012 March 20
PACS:
77.22.-d Dielectric properties of solids and liquids
77.84.Jd Polymers; organic compounds
77.80.Bh Phase transitions and Curie point
Authors
A.M. Lotonov$^1$, A.V. Vorobyev$^1$, N.D. Gavrilova$^1$, K.A. Verkhovskaya$^2$, S.G. Yudin$^2$
$^1$Department of Polymer and Crystal Physics, Faculty of Physics, Moscow State University, Moscow, 119991, Russia
$^2$Shubnikov Institute of Crystallography, Russian Academy of Sciences, Moscow, 119333, Russia
Issue 6, 2011

Moscow University Physics Bulletin

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