a Politecnico di Torino, Dipartimento di Scienza dei Materiali e Ingegneria Chimica, Cso Duca Degli Abruzzi 24, 10129 Torino, Italy b Centro de Investigacion en Quimica Aplicada, Blvd Enrique Reyna #140, 25100 Saltillo, Coahuila, Mexico
Abstract:
The synthesis of an epoxy functionalized spiroorthocarbonate (SOC) is reported. The obtained monomer has been used a slow shrinkable additive in cationic UV curing of a commercially available dicycloepoxy resin. A polymer network flexibilization was evidenced by increasing the SOC content in the photocurable formulation. It has been demonstrated that SOC acts as shrinkage reduction additive reaching expansion on volume after polymerization in the presence of 10 wt% of the functionalized spiroorthocarbonate.