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Thermodynamic properties of dimethylene urethane
被引:8
|作者:
Emel'yanenko, V. N.
[1
]
Turovtsev, V. V.
[2
]
Orlov, Yu D.
[2
]
机构:
[1] Kazan Fed Univ, Kazan 420000, Russia
[2] Tver State Univ, Tver 170100, Russia
基金:
俄罗斯基础研究基金会;
关键词:
dimethylene urethane;
oxazolidin-2-one;
enthalpy of formation;
saturated vapor pressure;
entropy;
free energy;
heat capacity;
anharmonic frequencies;
rigid rotator-anharmonic oscillator;
POLY(DIMETHYLENE URETHANE);
DISSOCIATION-ENERGIES;
VAPOR-PRESSURES;
FREE-RADICALS;
ENTHALPIES;
VAPORIZATION;
RING;
D O I:
10.1134/S0036024415070110
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
Enthalpies of the combustion and formation of crystalline dimethylene urethane (oxazolidin-2-one) are determined via combustion calorimetry. The enthalpy of sublimation is determined via the transpiration method, and the enthalpy of fusion is found by means of differential scanning calorimetry. The temperature dependence of the saturated vapor pressure is measured in the range of 323-353 K. Thermodynamic functions in the ideal gas state are calculated using the rigid rotator-anharmonic oscillator model in the range of T = 298.15-1500 K.
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页码:1146 / 1151
页数:6
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