KINETIC PHASE-TRANSITIONS AND REACTIVE WINDOWS IN REACTIONS OF MONOMERS ON 2-DIMENSIONAL LATTICES

Some conceptual considerations are made and Monte Carlo simulation stu dies are carried out to analyze a series of catalytic reactions of two and three monomers on a square lattice of sites. Two aspects are cons idered: The increase in the system's degrees of freedom, leading to th e formation of reactive sites that allow a change in the character of one of the kinetic phase transitions from the first order to a second order transition, and the classification and reactivity of the new sys tem class. (C) 1997 American Institute of Physics.