Internal Structure due to Crystallinity

The above examples illustrate how failures of the method of reduced variables, when applied in its simple form, serve as clues to additional information about the systems treated. They represent characteristic symptoms which may guide in the interpretation of other anomalies that may be observed in the future. 

For practical purposes, temperature dependence in systems that for any reason do not conform to the simple treatment with reduced variables can be represented by two-dimensional contour (isotimic) plots of temperature against frequency or time with curves for constant G G , and so forth.  

TREATMENTT OF DATA AT FIXED FREQUENCY OR TIME AND VARYING TEMPERATURE 

Critical application of the method of reduced variables requires a series of isotherms as in Fig. 11-1, each covering a wide enough range of frequency or time 

11 -20. Storage shear modulus of a 40% gel of polyvinyl chloride in dimethyl thianthrene plotted against temperature at three frequencies as indicated in radians/sec (data of Fitzgerald and 

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