Designing porous thermosets from polycyanurate networks modified by oligo(ε-caprolactone)

PMSE 255

Daniel Grande, grande@glvt-cnrs.fr1, Nelly Lacoudre, lacoudre@glvt-cnrs.fr1, Cédric Lorthioir, lorthioir@glvt-cnrs.fr1, Kristina Gusakova, kristinagusakova@rambler.ru2, Olga Grigoryeva2, and Alexander Fainleib, fainleib@i.kiev.ua2. (1) Equipe "Systèmes Polymères Complexes", Institut de Chimie et des Matériaux Paris-Est, CNRS-Université Paris XII, 2, rue Henri Dunant, 94320 Thiais, France, (2) Institute of Macromolecular Chemistry, National Academy of Sciences of Ukraine, 48, Kharkivske shose, 02160 Kyiv, Ukraine
This communication is concerned with the preparation of oligo(ε-caprolactone) (OCL)-modified polycyanurate (PCN) networks, and their subsequent use as precursors to porous thermosets. The polycyclotrimerization of dicyanate ester monomer in the presence of dihydroxy-telechelic OCL as a reactive modifier yields hybrid PCN/OCL-based networks. Starting from these systems, two straightforward routes can be envisioned to generate porous networks: the first approach implies a mere extraction of free OCL sub-chains, while the second strategy entails the selective hydrolysis of OCL fragments. The precursors as well as the resulting porous structures are characterized by several physico-chemical techniques, and the possibilities afforded by both routes are addressed.