Russian Journal of Applied Chemistry, 2012, Vol. 85, No. 4, pp. 678−683.
Pleiades Publishing, Ltd., 2012.
Original Russian Text © M.A. Yarmolenko, A.A. Rogachev, V.E. Agabekov, A.V. Rogachev, V.A. Dobysh, V.A. Tarasevich, D.V. Tapal’skii, 2012, published
in Zhurnal Prikladnoi Khimii, 2012, Vol. 85, No. 4, pp. 670−675.
AND POLYMERIC MATERIALS
Structure and Properties of Thin-Film Polyguanidine-Based
Composite Coatings Deposited from the Gas Phase
M. A. Yarmolenko
, A. A. Rogachev
, V. E. Agabekov
, A. V. Rogachev
, V. A. Dobysh
V. A. Tarasevich
, and D. V. Tapal’skii
Skorina Gomel State University, Gomel, Belarus
Institute of Chemistry of New Materials, National Academy of Sciences of Belarus, Minsk, Belarus
Gomel State Medical University, Gomel, Belarus
Received November 29, 2011
Abstract—Morphological features and structure of thin-ﬁ lm composite coatings containing polyhexamethylene-
guanidines and polyurethanes and prepared from volatile products of electron-beam dispersion of these polymers
Much attention is given today to the development of
a new class of polymeric alkyleneguanidine compounds,
which are water-soluble biodegradable polymers
exhibiting a wide spectrum of activity, high stability, and
low toxicity. They can be used for medical and household
disinfection, for biocidal protection of technological
ﬂ uids containing aqueous solutions, as biocides in water
treatment, as agents imparting antiseptic properties to
rubber items, paper, and mineral and carbon sorbents,
and as agents for protection of technological equipment
At the same time, high solubility in water of salt
forms of polyalkyleneguanidines (PGs) does not allow
the treated materials and items to preserve biocidal
properties in contact with a water-containing medium.
Prolonged bactericidal effect can be attained by forming
on the surface of materials and items a composite thin-ﬁ lm
coating whose matrix is a water-resistant polymer capable
to retain biologically active species by intermolecular
interactions . An efﬁ cient method for forming such
ﬁ lm composite materials is deposition from an active gas
phase generated by electron-beam dispersion or vacuum
evaporation of the initial components of the coating. This
method allows deposition of composite bioactive ﬁ lms of
controllable thickness onto various materials .
The goal of this study is deposition of thin-film
coatings, including composite coatings, from PG and
an active gas phase and evaluation of the antibacterial
properties of the coatings.
Thin-film coatings were deposited onto supports
[single-crystalline silicon and NaCl plates, metal-plated
poly(ethylene terephthalate) ﬁ lms] from volatile prod-
ucts of electron-beam dispersion of a powder of poly-
hexamethyleneguanidine hydrochloride (PHMGHC) or
phosphate (PHMGP) (see the table) or of their mechanical
mixtures with polyurethane (PU) (Desmopan 385) in
various weight ratios.
Generation of the active gas phase was performed by
exposure of the target with the initial powder to an elec-
tron beam (electron energy 800–1600 eV, beam current
density 0.01–0.03 A cm
). The coating thickness did not
exceed 1 μm and was monitored with a quartz resonator.
The coating structure was examined by IR spectroscopy
with a Vertex-70 (Bruker) IR Fourier spectrophotometer
using a standard multiple attenuated total internal reﬂ ec-
tion (MATIR) attachment and a standard thermal cell.