Isochronal temperature–concentration diagram for a polymer–diluent system

The results of an investigation of the viscoelastic and thermal properties of the gelatin–glycerol system are presented in the form of a complete temperature–composition diagram. This diagram shows the isochronal (10‐sec.) mechanical behavior of the system along lines of constant modulus and thereby affords a convenient assessment of variation in viscoelastic behavior along any isotherm or isopleth of interest. Comparison of the results with previously obtained limited sets of data on a number of other polymer–dilent systems indicates the applicability and utility of such a presentation.