Relaxation times style

FIGURE 16.2 (See color insert.) Simulation box (3.7 x 3.7 x 3.7 mn) with periodic boundaries showing four Eudragit RS polymer chains and six ibuprofen molecules after a relaxation time of 2 ns at 430 K. One polymer chain and all ibuprofen molecules are visualized in ball-and-stick style to demonstrate the size of the box as well as the distribution of the drug molecules. 

If a small deformation Axo is generated on a piece of polymer materials by employing a small external force for a time period, after the force has been removed, a spontaneous recovery process of deformation can be regarded as the relaxation process. The most common style of such a relaxation process is the Debye relaxation process (Debye 1913), as demonstrated in Fig. 6.6, which exhibits an exponential decay of deformation with time t, as given by... 

---