ΔCp, Δα and related quantities for epoxy-aromatic amine networks

The parameters of glass transition in several epoxyamine polymer networks were obtained. The changes ΔCp (Tg) and Δα(Tg) were proved to be correlated with the concentration of crosslinks in these systems. The difference in glass transition parameters for linear and densely crosslinked polymers was analysed in terms of Simha-Boyer (ΔαTg) and Boyer (ΔCp·Tg) rules and Eyring's hole theory.