Polymer chain scission at constant tension - an example of force-induced collective behaviour

Details Polymer chain scission at constant tension - an example of force-induced collective behaviour Polymer chain scission at constant tension - an example of force-induced collective behaviour

2011-03-26

arxiv.org/abs/1103.5141v1

EPL 94 48003 (2011)

Physics

Condensed Matter

Soft Condensed Matter

6 pages, 7 pages

Scientific paper

The breakage of a polymer chain of segments, coupled by anharmonic bonds with applied constant external tensile force is studied by means of Molecular Dynamics simulation. We show that the mean life time of the chain becomes progressively independent of the number of bonds as the pulling force grows. The latter affects also the rupture rates of individual bonds along the polymer backbone manifesting the essential role of inertial effects in the fragmentation process. The role of local defects, temperature and friction in the scission kinetics is also examined.

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