Critical energy for photopolymerization of ceramic suspensions in acrylate monomers

The critical energy dose E-c required for photopolymerization of silica and alumina suspensions in acrylate monomers was measured for a large series of suspensions, and contrasted with a model that based on the assumption that E-c is the dose necessary to exhaust the polymerization inhibitors. The major predictions of the model were in good agreement with the data: E-c is inversely proportional to photoinitiator concentration, directly proportional to inert dye concentration, and directly proportional to the concentration of inhibitors. (c) 2010 Elsevier Ltd. All rights reserved.