title: Complex dynamics in gelling systems.
abstract: We study the viscoelastic properties and the relaxation process in a gelling system by means of a minimal statistical-mechanics model. The model is based on percolation and bond fluctuation dynamics. The values for the critical exponents of the viscosity and elasticity agree with a part of the experimental observations and of the theoretical predictions. The obtained relaxation patterns well reproduce the behaviour observed in different gelling systems.
authors.affiliation: Dipartimento di Ingegneria dell'Informazione, Seconda Università di Napoli, Via Roma 29, 81031 Aversa (CE), Italy. lucilla.dearcangelis@na.infn.it
authors.forename: L
authors.initials: L
authors.lastname: de Arcangelis
authors.forename: E
authors.initials: E
authors.lastname: Del Gado
authors.forename: A
authors.initials: A
authors.lastname: Coniglio