Russian Journal of Applied Chemistry, 2011, Vol. 84, No. 9, pp. 1575−1581.
Pleiades Publishing, Ltd., 2011.
Original Russian Text © A.M. Bochek, N.M. Zabivalova, V.K. Lavrent’ev, I.V. Abalov, I.V. Gofman, 2011, published in Zhurnal Prikladnoi Khimii, 2011,
Vol. 84, No. 9, pp. 1526−1532.
AND POLYMERIC MATERIALS
Properties of Mixed Aqueous Solutions
of Methyl Cellulose with Polyethylene Oxide
and of Composite Films Prepared from Them
A. M. Bochek, N. M. Zabivalova, V. K. Lavrent’ev,
I. V. Abalov, and I. V. Gofman
Institute of Macromolecular Compounds, Russian Academy of Sciences, St. Petersburg, Russia
Received May 12, 2011
Abstract—Rheological properties of mixed dilute and moderately concentrated aqueous solutions of methyl
cellulose with polyethylene oxide were studied. Composite ﬁ lms were prepared from these solutions, and their
physicomechanical properties and structural organization were examined.
Polymer items based on natural polysaccharides,
including cellulose, chitin, and their derivatives [1–4],
are widely used today in diverse ﬁ elds. Among cellulose
derivatives, the most widely used are water-soluble
cellulose ethers and esters: methyl cellulose (MC), propyl
methyl cellulose, carboxymethyl cellulose sodium salt,
and O-alkyl-substituted cellulose ethers. The functional
properties of cellulose ethers and esters can be made
more diverse by further chemical modiﬁ cation [5–7] or
by blending with other natural and synthetic polymers in
a common solvent [8–11].
Methyl cellulose is a widely used nonionic cellulose
derivative. Depending on the degree of substitution (DS)
and of distribution of substituents in anhydroglucose
units and along macrochains, MC can be soluble in
water and in organic solvents [12–15], which allows
preparation of composite ﬁ lms and ﬁ bers based on
it from polymer blend solutions in various solvent
systems. Methyl cellulose is used in oil extraction, in
paper, textile, and food industry, and in production of
paint-and-varnish materials, dry building mixes, and
adhesives. In most cases, MC is used in the form of
When MC is blended with other natural and synthetic
polymers in a common solvent, the components can
form in solutions structures whose organization features
and stability depend on the chemical composition,
rigidity of macromolecules, degree of polymerization,
and kind of the solvent [16–20]. In most cases, cellulose
ethers and esters exhibit in composite materials partial
compatibility with other polymers.
Polyethylene oxide (PEO) (or polyethylene glycol),
like MC, is soluble in water and organic solvents and
is widely used in biotechnology and medicine [21,
22]. As shown in [23, 24] PEO is partially compatible
with chitosan. In the composition range in which the
polymers are compatible, the composite ﬁ lms exhibit
new properties. It is of scientiﬁ c and practical interest
to study how PEO affects the structural and strength
characteristics of composite ﬁ lms based on MC.
In this study we examined the rheological properties
of dilute and moderately concentrated aqueous
solutions of blends of MC with PEO, and also the
structural organization and the deformation and strength
characteristics of ﬁ lm composite materials prepared
from the solutions.