A kinetic gelation model was used to predict the complex network structures that arise in the high crosslinking regime of homopolymerizations and copolymerizations of multifunctional monomers. In particular, network inhomogeneities, relative functional group reactivities, and cyclization vs crosslinking tendencies were studied for a variety of systems as a function of the reaction conditions. Since the network structure strongly influences the physical and mechanical properties of the polymer, the objective of this work was to predict and study the effects of reactions conditions on this structure to provide insight for developing better materials. The following work presents the results from a kinetic gelation simulation, and when available, compares these results to experimental values.