Russian Journal of Applied Chemistry, 2013, Vol. 86, No. 2, pp. 273−277.
Pleiades Publishing, Ltd., 2013.
Original Russian Text © A.Yu. Danilov, S.D. Khizhnyak, I.V. Platonova, S.G. Kazaryan, P.M. Pakhomov, 2013, published in Zhurnal Prikladnoi Khimii,
2013, Vol. 86, No. 2, pp. 294−298.
AND POLYMERIC MATERIALS
An IR Study of the Morphology of Polymeric Composites
A. Yu. Danilov
, S. D. Khizhnyak
, I. V. Platonova
, S. G. Kazaryan
, and P. M. Pakhomov
Tver State University, Tver, Russia
Lomonosov Moscow State University, Moscow, Russia
Imperial College, London, the United Kingdom
Received April 23, 2012
Abstract—The polymeric matrix prepared by the solution procedure from a 1 : 1 blend of polyvinylidene ﬂ uoride
and polyamidobenzimidazole and its composite ﬁ lled with NTsTS-1 piezoelectric ceramic exhibiting high ther-
mal and ferroelectric properties were studied by Fourier IR spectroscopy. In this matrix, polyvinylidene ﬂ uoride
crystallizes with the formation of a polar β-phase, imparting enhanced ferroelectric properties to the material.
Determination of the particle size distribution in the polymeric matrix by optical microscopy and IR spectroscopy
gave consistent results.
The development of new composite materials with the
required set of properties is a topical problem. Composites
based on polymer blends and inorganic ﬁ llers are among
such materials. An important characteristic of polymeric
composites, affecting the whole set of their properties,
is the size distribution of ﬁ ller particles in the polymeric
Polymeric composites ﬁ lled with piezoelectric ce-
ramic attract increased researchers’ attention, because
such materials combine high elasticity with piezoelectric
properties and can be prepared by simple procedures
[1–4]. Various polymer blends are of particular interest
in choosing a matrix for the composite. Blending of poly-
mers allows preparation of materials whose properties
(thermal, mechanical, electrical, etc.) differ from those
of the polymers taken separately.
The size distribution of ﬁ ller particles in a polymeric
matrix is estimated, as a rule, by microscopic methods.
However, obtaining information for the bulk of the ma-
trix by transmission electron microscopy requires thin
specimens, and scanning electron microscopy allows
examination of only the specimen surface.
The method of IR spectroscopy in the Image mode,
developed relatively recently , allows solution of this
problem. Combination of Fourier IR spectroscopy with
an IR microscope and a focal detector furnished informa-
tion on the structure of polymeric composites (chemical
composition of the substance, spatial distribution of vari-
ous components in 2D and 3D images, and size of these
components). In addition, the size distribution of ﬁ ller
particles in a polymeric matrix can also be estimated us-
ing common IR spectroscopy by analyzing elastic light
scattering (diffraction or resonance scattering) from the
ﬁ ller particles in the composite . All these facts open
additional possibilities in studying the morphology of
The recently prepared  polymeric composites based
on polyvinylidene ﬂ uoride–polyamidobenzimidazole
(PVDF–PABI) blend as matrix and NTsTS-1 ferroelectric
material as ﬁ ller are of particular interest for spectroscopic
studies. These composites combine high ferroelectric and
thermal properties with high elasticity.
In the present study we examined the morphology of
this polymeric composite by modern IR methods: Image
and resonance scattering modes.
To prepare the polymeric matrix, we used PVDF of
F-2M grade in the form of powder (Plastpolimer Produc-