Rheological analysis, polymers polymeric systems

Dynamic mechanical analysis in polymeric multiphase systems in solid state, as part of rheology, is associated with oscillatory tests that are employed to investigate all kinds of viscoelastic material from the point of view of flow and deformation behavior. In particular, it evaluates the molecular mobility in polymers, the pattern of which may be an indication of phase-separated systems. Although there are certain preferred tools for visual examination of phenomena for these kinds of systems, dynamic mechanical analysis has the advantage of examination in dynamic conditions and of the prediction of properties. 

As stated earlier, polymer rheology is not confined to the study of liquid polymers. However, this section is focused on the analysis of polymer melts, since these materials have a great relevance in polymer processing. The viscometric techniques to be discussed in this section may apply not only to polymer melts but also to other polymeric liquid systems, such as solutions and suspensions. 

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