Models that Account for Additional Relaxation Processes

7 Models that Account for Additional Relaxation Processes 

A rational approach to this problem is to model all aspects of the relaxation process, including the high-frequency (short-time) processes. This is the approach taken by BenaUal et al. [44] in their model for a monodisperse polymer. They considered the relaxation modulus to be the sum of four contributions as follows  

HF High-frequency glassy (alpha) relaxation process 

A Fast Rouse modes involving only chain segments between entanglements B Longitudinal Rouse modes 

C Reptation with constraint release and tube length fluctuations 

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