Russian Journal of Applied Chemistry, 2012, Vol. 85, No. 1, pp. 112−119.
Pleiades Publishing, Ltd., 2012.
Original Russian Text © B.A. Zaitsev, I.D. Shvabskaya, L.G. Kleptsova, O.V. Sorochinskaya, 2012, published in Zhurnal Prikladnoi Khimii, 2012, Vol. 85,
No. 1, pp. 118−125.
AND POLYMERIC MATERIALS
Heat-Resistant Network Copolymers of Triethylene Glycol
Dimethacrylate with 4,4'-Divinyldiphenyl Oxide
and Monomer–Oligomer Formulations Based on It
B. A. Zaitsev, I. D. Shvabskaya, L. G. Kleptsova, and O. V. Sorochinskaya
Institute of Macromolecular Compounds, Russian Academy of Sciences, St. Petersburg, Russia
Received September 20, 2011
Abstract—Thermal and physicomechanical properties and thermal oxidative aging at 250 and 300°С of triethylene
glycol dimethacrylate homopolymer and copolymers with divinyl aromatic compounds and of glass-cloth laminates
based on these polymers were studied.
It is known that triethylene glycol dimethacrylate
(TGM-3) is a component of various unsaturated polyester
resins and compounds (e.g., oligoether acrylates, malein-
ate acrylates) [1–3]. Owing to low volatility and consider-
ably lower toxicity compared to styrene, divinylbenzene,
methyl methacrylate, and other monomers, it is used as
an active diluent (comonomer) in so-called styrene-free
unsaturated polyester resins used in dental formulations,
casting and impregnating compounds, sealants, and glass-
reinforced plastics. Network polymers prepared by curing
of TGM-3 and its compounds with unsaturated (poly)
esters have relatively poor thermal characteristics. Their
softening point is about 100°С, and the onset of thermal
degradation, about 200°С [1–3].
Previously we developed low-viscosity unsaturated
resins of new kind, Rolivsans (ROLs), and related divi-
nyl aromatic formulations (DAFs), prepared by thermal
catalytic transformations of disecondary aromatic diols,
e.g., of bis[4-(1-hydroxyethyl)phenyl] ether (BHPE).
These resins exhibit high thermal stability and high heat
distortion temperature [4–10]. The formulations include
divinyl aromatic monomers, e.g., bis(4-vinylphenyl) ether
(BVPE), and linear unsaturated oligomers (OL-1 and
OL-2) with terminal vinyl and/or methacrylate groups,
prepared by cationic oligomerization of BVPE:
Three-dimensional polymerization of BVPE, OL-
1, and OL-2 and of monomer–oligomer formulations
(MOFs) based on them (ROL, DAF) yields highly heat-
resistant network polymers [9, 11–13]. These divinyl
aromatic compounds can be used as cross-linking agents
for enhancing the heat resistance of cured unsaturated
polyesters and oligoether acrylates [14–16].
The goal of this study was improvement of thermal
characteristics of polymers and composites prepared
on the basis of TGM-3. To this end, we examined the
C HC PhOPh CH (CH
CH PhOPh CH)
CH CH PhOPh CH CH
CC C CH (CH
CH Ph CH)
Ph O Ph O Ph