Abstract
Cyclo-aliphatic epoxy and methacrylate hybrimers were fabricated via the photocationic polymerization of cycloaliphatic epoxy oligosiloxanes and photoradical polymerization of methacrylate oligosiloxanes, respectively. The thermomechanical/thermal properties of these two hybrimers using different photo-polymerization mechanisms were compared. Although both oligosiloxanes showed similar degrees of condensation, siloxane network structures, and sizes, the cycloaliphatic epoxy hybrimer showed improved thermomechanical/thermal properties as compared to the methacrylate hybrimer. This was attributable to a highly crosslinked network structure developing from the living characteristics of photocationic polymerization and the short, compact organic chains of the cycloaliphatic epoxy hybrimer as compared to the methacrylate hybrimer. Open image in new window
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