Thermodynamics of phenyl glycidyl ether and its reactions with diphenylcarbodiimide and phenyl isocyanate with the formation of iminooxazolidine and oxazolidinone in the 0?330 K range

Abstract

1. The temperature dependence of the heat capacity of phenyl glycidyl ether in vitreous, crystalline, supercooled liquid and liquid states was studied in an adiabatic vacuum calorimeter in the 14–330‡K range with an error of -0.3 %. The temperature, enthalpy and entropy of fusion, as well the glass transition temperature were determined. 2. The thermodynamic functions H‡(T)-H‡(O), S‡(T), G‡(T)-H‡(O) were calculated for the range of 0–330 K; the zero entropy and the difference between the zero enthalpies of a vitreous and crystalline phenyl glycidyl ether were calculated; the thermodynamic parameters of its formation at a standard pressure and T=298.15 K were calculated. 3. The enthalpy, entropy, and Gibbs energy of the reaction of phenyl glycidyl ether with diphenylcarbodiimide and phenylisocyanate were calculated. It was found that these processes are thermodynamically permissible over the whole temperature range studied and have an upper limiting temperature.