ISSN 1070-4272, Russian Journal of Applied Chemistry, 2014, Vol. 87, No. 5, pp. 646−650. © Pleiades Publishing, Ltd., 2014.
Original Russian Text © M.N. Nikolaeva, A.A. Martynenkov, R.Yu. Smyslov, A.N. Bugrov, 2014, published in Zhurnal Prikladnoi Khimii, 2014, Vol. 87, No. 5,
AND POLYMERIC MATERIALS
Thin ﬁ lms prepared from nonconjugated polymers
exhibit the metal type of conductivity [1–5], and at liquid
helium temperatures they can exhibit superconductivity
[2, 4–6]. Such systems are in a highly conducting state
at the voltage below the breakdown level (E << E
thickness of ﬁ lms with the metal type of conductivity
reaches several micrometers [7, 8]. Therefore, metal–
polymer ﬁ lm–metal (m–p–m) systems can be considered
as a promising material for molecular electronics and
can be used in various ﬁ elds as conducting, light, and
relatively cheap components.
It was shown previously [1–5] that conductivity can
arise in thin ﬁ lms of nonconjugated polymers owing to
electriﬁ cation of the polymer ﬁ lm by the metal support.
In this case, the conductivity of polymer ﬁ lms depends
on the mobility of polymer chains , chemical structure
of the polymer [6, 8], presence of hydrogen bonds in the
polymer , molecular weight [8, 10], and work function
of electrons from the supporting metal . At the same
time, dependences of the conductivity on the amount
of hydrogen bonds in the polymer and on the presence
of interchain cross-links were not studied. The effect of
various inorganic and organic impurities in the polymer
matrix on the conducting properties of thin polymer ﬁ lms
was not examined either. Differences in the chemical
structure of the polymers and presence of impurities and
defects in polymer ﬁ lms can affect the conducting proper-
ties of polymer ﬁ lms [2, 6].
This work was aimed to study how the conductivity
of m–p–m structures is inﬂ uenced by additives that have
not been examined previously (paramagnetic and diamag-
netic ﬁ llers, gold nanoparticles) and by the presence of
Because electric charges moving through a polymer
ﬁ lm should produce a magnetic ﬁ eld, paramagnetic addi-
tives should probably interact with the charges, altering
their trajectory and thus the resistance of the polymer
ﬁ lms. Intermolecular cross-links, as a rule, decrease the
ﬂ exibility of polymer chains, and this should affect the
conducting properties of polymer ﬁ lms .
Polysiloxaneimide PSI-10 with 2% vinyl groups was
synthesized by the procedure described in [11, 12], and
poly(1,10-decamethyleneacetamidine) (PAm), by the
procedure described in .
The structural formulas of polysiloxaneimide PSI-10,
where m, p, and q are the amounts of structural units, p =
Resistance of Dielectric Polymer Films with Fillers
in Metal–Polymer–Metal Systems
M. N. Nikolaeva
, A. A. Martynenkov
, R. Yu. Smyslov
, and A. N. Bugrov
Institute of Macromolecular Compounds, Russian Academy of Sciences,
Bol’shoi pr. 31, St. Petersburg, 199004 Russia
Institute of Chemistry, St. Petersburg State University, Universitetskii pr. 2, Petrodvorets, St. Petersburg, 198903 Russia
Received May 29, 2014
Abstract—The effect of physical factors on the resistance of thin ﬁ lms of nonconjugated polymers was studied.
The resistance of polymer ﬁ lms with the metal type of conductivity decreases with an increase in the amount
of interchain hydrogen bonds and of metal nanoparticles in the polymer matrix, and also in the presence of
a plasticizing additive. Introduction of paramagnetic admixtures and formation of interchain covalent cross-links,
on the contrary, increase the resistance of polymer ﬁ lms.