Russian Journal of Applied Chemistry, 2012, Vol. 85, No. 4, pp. 666−669.
Pleiades Publishing, Ltd., 2012.
Original Russian Text © Z.F. Zoolshoev, A.R. Groshikova, I.A. Strelina, S.V. Bushin, E.F. Panarin, 2012, published in Zhurnal Prikladnoi Khimii, 2012,
Vol. 85, No. 4, pp. 651−654.
AND POLYMERIC MATERIALS
Synthesis and Study
Methyl Sulfate in Longitudinal and Shear Flows
Z. F. Zoolshoev, A. R. Groshikova, I. A. Strelina, S. V. Bushin, and E. F. Panarin
Institute of Macromolecular Compounds, Russian Academy of Sciences, St. Petersburg, Russia
Received December 27, 2011
Abstract—Samples of poly(N,N,N,N-trimethylmethacryloyloxyethylammonium) methyl sulfate prepared by
suspension and bulk polymerization were studied.
Cationic polyelectrolytes based on amino acrylates
and their quaternary ammonium salts are widely used as
ﬂ occulants for treatment of water for various purposes and
in biotechnology. The ﬂ occulant performance depends on
the molecular weight, charge, and structure of the poly-
Plotnikova et al.  studied how the structure and
molecular weight of a cationic polyelectrolyte based
methyl sulfate (TMS) affects the protein ﬂ occulation and
showed that the linear polymer was less effective than
the branched polymer of lower molecular weight. The
structural formula of poly(N,N,N,N-trimethylmethacryloy-
loxyethylammonium) methyl sulfate (PTMS) is as follows:
A study of the dynamic behavior of polyelectrolyte
macromolecules of various structures makes it possible
to reveal differences in the macromolecule architecture
 and to account for differences in their ﬂ occulating
This study deals with the inﬂ uence of the poly(N,N,N,N-
trimethylmethacryloyloxyethylammonium) methyl sul-
fate structure on the conformation and optical properties
of the macromolecules.
Synthesis of N,N,N,N-Trimethylmethacryloylox
yethylammonium methyl sulfate (TMS). A 250-ml
three-necked ﬂ ask was charged with 50 ml of toluene,
after which 10 g of dimethylaminoethyl methacrylate
(DMAEM) was added. The mixture was cooled to 0–5°С,
and 8.0 g of dimethyl sulfate (DMS) was slowly added
with stirring. The quaternary salt (TMS) formed as a
ﬁ nely dispersed powder was ﬁ ltered off and washed with
acetone. Yield of the monomer 85 wt %, pH of aqueous
solution 5.5–6.3. Yield of the monomer was 85 wt %.
Synthesis of PTMS by bulk polymerization (sample
I) . A 20-ml Teﬂ on test tube was charged with 5 g of
the monomer, 0.43 ml (8 wt %) of distilled water was
added, and the mixture was heated to 50°С in a nitrogen
stream, after which it was left for 24 h in an inert atmo-
sphere. The resulting solid block was crushed to obtain
a friable product. The polymer was puriﬁ ed to remove the
residual monomer by extraction with ethanol in a Soxhlet
apparatus for 6 h.