RADIATION-INDUCED POLYMERIZATION OF GLASS-FORMING SYSTEMS - 7. POLYMERIZATION IN SUPERCOOLED STATE UNDER HIGH PRESSURE.

In the reported experiments, radiation-induced polymerization of glass-forming monomers such as 2-hydroxyethyl methacrylate and glycidyl methacrylate under high pressure was studied. The glass transition temperature of these monomers was heightened by increased pressure. The temperature dependence of polymerizability showed a characteristic relation, similar to those in supercooled-phase polymerization under normal pressure, that had a maximum at T//v which shifted to higher levels of temperature as well as to T//g under high pressure. Polymerizability in supercooled state also increased under increased pressure.