The elastic response in polymeric gels is studied by means of a percolation dynamic model. By numerical simulations the fluctuations in the gyration radius and in the center-of-mass motion of the percolating cluster are determined. Their scaling behavior at the gelation threshold gives a critical exponent for the elastic modulus fsimilar to2.5+/-0.1 in agreement with the prediction f=dnu.
Elastic critical behavior in a three-dimensional model for polymer gels
DE ARCANGELIS, Lucilla;
2002
Abstract
The elastic response in polymeric gels is studied by means of a percolation dynamic model. By numerical simulations the fluctuations in the gyration radius and in the center-of-mass motion of the percolating cluster are determined. Their scaling behavior at the gelation threshold gives a critical exponent for the elastic modulus fsimilar to2.5+/-0.1 in agreement with the prediction f=dnu.File in questo prodotto:
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