Russian Journal of Applied Chemistry, 2013, Vol. 86, No. 1, pp. 63−68.
Pleiades Publishing, Ltd., 2013.
Original Russian Text © M.Zh. Burkeev, A.K. Magzumova, E.M. Tazhbaev, G.K. Burkeeva, A.K. Kovaleva, T.O. Khamitova, M.M. Mataev, 2013, published
in Zhurnal Prikladnoi Khimii, 2013, Vol. 86, No. 1, pp. 68−73.
AND POLYMERIC MATERIALS
Effect of External Factors on the Swelling of Hydrogels Based
on Poly(ethylene glycol) Maleate with Some Vinyl Monomers
M. Zh. Burkeev
, A. K. Magzumova
, E. M. Tazhbaev
, G. K. Burkeeva
, A. K. Kovaleva
T. O. Khamitova
, and M. M. Mataev
Buketov State University, Karaganda, Kazakhstan
Kasakh State Women Pedagogical University, Almaty, Kazakhstan
Received November 29, 2012
Abstract—Effect of the pH of the medium, temperature, and nature of solvents and inorganic salt on the behavior
of hydrogels based on copolymers of poly(ethylene glycol) maleate with acrylic and methacrylic acids and
acrylamide was studied. It was shown experimentally that the susceptibility of the hydrogels to changes in the
factors mentioned above, depending on the nature of a comonomer.
Recent years have been characterized by a clearly
pronounced tendency toward wider use of special-
purpose polymeric materials in chemistry of
macromolecular compounds. That is why the attention
of researchers developing new effective compounds
with speciﬁ c properties has been attracted by the so-
called “intellectual” polymers.
To “intellectual” polymers with network structure are
attributed materials that can change in a preprogrammed
way their size under the action of external factors, such
as temperature, pH of the medium, ionic strength and
nature of a solvent, etc. Materials of this kind can be
used in biochemical and biotechnological research
and modeling of regulation processes in living cell,
associated with phase transitions in membranes .
Network polymers provide unlimited opportunities
for control over their properties by inclusion of
functional groups adequately responding to changes in
external conditions into their macroscopic networks.
Presence of particular functional groups in the networks
predetermines their susceptibility to certain external
In this context, a search for new monomers with
appropriate functional groups in order to obtain polymers
with high water-swellability is a topical task.
Of considerable interest as potential moisture
sorbents are copolymers based on unsaturated polyester
resins curable at low temperatures . There is
published evidence about copolymerization of styrene
with a number of polymaleates and polyfumarates
to give products having various physicomechanical
properties . At the same time, no data are available for
copolymerization of unsaturated polyester resins and,
in particular, those based on maleic acid and ethylene
glycol with a number ionogenic monomers, which
can serve as moisture sorbents owing to the favorable
The goal of this study was to examine the effect
of external factors on the behavior of new hydrogels
based on copolymers of poly(ethylene glycol) maleate
(p-EGM) with acrylic (AA) and methacrylic (MAA)
acids and acrylamide (AAm) and to search for practical
areas of their application.
Poly(ethylene glycol)maleate was produced by
polycondensation of maleic acid and ethylene glycol at
a temperature of 393–403 K , with the reaction course
monitored by determining the acid number.