title: Elastic critical behavior in a three-dimensional model for polymer gels.
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 f approximately 2.5+/-0.1 in agreement with the prediction f=dnu.
authors: Dipartimento di Scienze Fisiche, Università di Napoli "Federico II," Complesso Universitario di Monte Sant'Angelo, via Cintia 80126 Napoli, Italy.
authors: Emanuela
authors: E
authors: Del Gado
authors: Lucilla
authors: L
authors: De Arcangelis
authors: Antonio
authors: A
authors: Coniglio