Supercomputer Simulation of Crystal Defects

19 mobile chains 16 of 100 CH2-groups in each chain 12 (surrounded byl8 

The details of the mechanism of formation of a kink can be deduced from Fig. 5.101, where one chain that develops a kink has been drawn in a sequence of snapshots, spaced 0.1 ps apart. The perspective is as before in Figs. 1.47 and 5.97. 

By inspection, one can see that the kink is the result of the collision of a transverse (A), torsional (B), and longitudinal vibration (C) between 0.5 and 1.1 ps (see also Fig. 1.47). After formation, this particular kink defect had a life time of about 2 ps. 

The mechanism of twisting of a single chain is illustrated in Fig. 5.102. One can see a very gradual twist starts at about 1.5 ps, and is completed after 2.3 ps. After this 

The sequence of Figs. 5.103-105 illustrates the details of the diffusion of a chain through the crystal. The figures refer to a chain that was driven into the direction of 

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