Abstract
Abstract The kinetic aspects of the formation of a second network in the presence of the first have been studied in polyurethane-poly(methyl methacrylate) interpenetrating networks. The effect on kinetics of parameters such as the polyurethane content, the amount of acrylic crosslinker and the reaction temperature has been examined. It was found that the elastomeric polyurethane acts as a diluent that allows complete conversion of the acrylic monomers, and, through its viscosity, induces gelation of the reaction medium at the very beginning of the polymerization.
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