Topological Analysis of Linear Polymer Melts
  We introduce an algorithm for the reduction of computer generated atomistic polymer samples to networks of primitive paths. By examining network ensembles of Polyethylene and cis-1,4 Polybutadiene melts, we quantify the underlying topologies through the radial distribution function of entanglements and the distribution of the number of monomers between entanglements. A suitable scaling of acquired data leads to a unifying microscopic topological description of both melts. 
Christos Tzoumanekas and Doros N. Theodorou