Thermochemistry of the binary system nitrocellulose+N-nitrodiethanolamine dinitrate |
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Authors: | A Książczak M Ostrowski W Tomaszewski |
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Institution: | (1) Department of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland |
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Abstract: | The melting and mixing enthalpy of the binary system nitrocellulose and N-nitrodiethanolamine dinitrate (DINA) was determined
by DSC. The mixing enthalpy H
maxM = 1.95 kJ mol−1 had maximum at mass fraction x
wDINA=0.46. The influence of samples storing on glass and endothermic transitions were studied. The temperature range of glass
transition broadened with x
wDINA what proved the increase of samples heterogeneity. For x
wDINA≤0.750 no influence of samples storing on the phase changes was observed. The heat capacity change decreased and temperature
range of glass transition increased for x
wDINA≤0.500 what indicated the reduction of glass phase fraction in studied samples. |
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Keywords: | DSC glass transition melting enthalpy mixing enthalpy nitrocellulose N-nitrodiethanolamine dinitrate (DINA) |
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