Calorimetric study of polyketone formed from carbon monoxide, ethylene and butene-1

P D Afonin, N N Smirnova, A V Markin, G P Belov, O N Golodkov, O N Smirnova, Yu A Rybakova


The temperature dependence of the heat capacity for partially crystalline polyketone derived from carbon monoxide with ethylene and butene-1 (the butane units content is 14.6 mol %) was studied over the range 6–520 K by the methods of precision adiabatic vacuum calorimetry and differential scanning calorimetry. Thermodynamic characteristics of the glass transition and glassy state and melting characteristics were determined. The standard thermodynamic functions, namely,      and , were calculated for the temperature range from T → 0 to 400 K, based on the experimental data. Thermal stability temperature for polyketone (520 K) has been specified by the thermogravimetry method.

Ключевые слова

ternary alternating copolymer; heat capacity; thermodynamic parameters of melting; thermodynamic functions

Полный текст:



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