A new model for size-distribution function in living polymers

We present a new iterative model for the computation of the asymptotic population of different species in competition in a confined environment. The results of the model are successfully compared with some experimental indications, for dense systems of living polymers, which are not rationalizable within the currently proposed analogy with polymeric solutions. The observed complex behaviour of such a kind of systems is well reproduced when we take into account the existence of some feedback effects, represented by excluded volume interactions. Furthermore, the time evolution of the system towards equilibrium is followed and the possibility of some anti-kinetic behaviours is emphasized.