THE GRÜNEISEN FUNCTION FOR SOME POLYMERIC MATERIALS AND THEIR MIXTURES

The dependence of the Grüneisen function of some polymeric materials on their density and temperature has been investigated. It is shown that in polymers having a complex macromolecular structure the temperature of the polymer vitrifi cation varies depending on the rate of the effect exerted on them and, as a consequence, the relationship between the molecular and intramolecular values of the Grüneisen function undergoes a change. A comparative analysis of the results of calculations and experimental data is made. Their good agreement is obtained.
The dependence of the Grüneisen function of some polymeric materials on their density and temperature has been investigated. It is shown that in polymers having a complex macromolecular structure the temperature of the polymer vitrifi cation varies depending on the rate of the effect exerted on them and, as a consequence, the relationship between the molecular and intramolecular values of the Grüneisen function undergoes a change. A comparative analysis of the results of calculations and experimental data is made. Their good agreement is obtained.
Author:  A. M. Kugotova, A. Kh. Tsechoeva, B. I. Kunizhev and A. Kh. Adzhiev
Keywords:  polymers, Grüneisen function, density, temperature, volume, pressure
Page:  1333