Thermal polymerization of acrylate monomer suspensions of alumina, titania, and titanate powders

Abstract The polymerization kinetics of 50 volume percent suspensions of four oxide powders in isobornyl acrylate solutions initiated with benzoyl peroxide were determined with dynamic differential scanning calorimetry at a range of heating rates. Compared with the powder‐free isobornyl acrylate solution, polymerization kinetics were similar for titania suspensions. Polymerization kinetics were much faster in suspensions of barium titanate, strontium titanate, and alumina powders, indicating a significant catalytic effect of the oxide surfaces.