| Abstract: | In this work various methods concerning the determination of compatibility of polymers are discussed. The conclusion is, that the earlier proposed “kinetical” method, besides the method of phase separation in common solution, is one of the surest methods of compatibility determination for polymers. However, over the latter, the kinetical method offers the advantage of rapidity and the possibility to predict the thermostability, the interactions of functional groups and the formation of solution in the solide state. While the interaction of functional groups may be established also by IR-spectroscopy, the other methods permit no conclusions of this kind. Generally it is very difficult to make statements on the formation of solution in the solid state on the basis of other methods of compatibility investigation. Quite useless, at least for our polymer mixtures, are the measurements of viscosity in concentrated as well as in dilute polymer solutions. |
