Russian Journal of Applied Chemistry, 2009, Vol. 82, No. 1, pp. 128−131.
Pleiades Publishing, Ltd., 2009.
Original Russian Text
S.G. Stepin, E.A. Dikusar , 2009, published in Zhurnal Prikladnoi Khimii, 2009, Vol. 82, No. 1, pp. 129−132.
AND POLYMERIC MATERIALS
Polymerization of Styrene Initiated by Acetylenic Peroxides
S. G. Stepin and E. A. Dikusar
Vitebsk State University, Vitebsk, Belarus
Institute of Physical Organic Chemistry, Belarussian National Academy of Sciences, Minsk, Belarus
Received July 30, 2008
Abstract—The initiating activity of acetylenic peroxides in polymerization of styrene was studied. The kinetic
parameters of the polymerization and its initiation were calculated. The effect exerted by the structure of radicals
on the initiating activity of peroxides was evaluated.
Acetylenic peroxides are stable explosion-proof
initiators of radical chain processes  and promising
high-temperature initiators for polymerization. Also,
they are rubber vulcanizing agents . 2,5-Dimethyl-2,5-
di(tert-butylperoxy)-3-hexyne (Trigonox 145-E-85 brand)
is produced on an industrial scale by the Netherlands
Company “AlkzoNobel” and is used as initiator for
polymerization of acrylates, styrene, and for cross-linking
of polyethylene, especially in cable industry. It was shown
 that ferrocene-containing acetylenic peroxides are
effective initiators for polymerization of styrene, and the
whose initiating activity can be varied within wide range
depending on the structure of radicals.
In this work we studied polymerization of styrene
initiated by acetylenic peroxides, 2-methyl-2-tert-
butylperoxy-3-hexadecyne (I), 4-trans-[2-methyl-2-(2-
bicyclo[3.1.1.]heptan-4-ol (II), 2-methyl-2-(2-methyl-2-
3-pentyne (III), 4-trans-[2-methyl-2-(2-methyl-2-pentyl
heptan-4-ol (IV), 2-methyl-2-(2-methyl-2-pentyl peroxy)-
(V), 1-(1-acetoxy adamantyl)-3-methyl-3-(methyl-2-
pentylperoxy)-1-butyne (VI). 2-Tert-butylperoxy-2-