Journal of Applied Polymer Science · 2001 · 14 citations · 16 references
EngineeringMaterials EngineeringMaterials SciencePolymer ChemistryPolymer EngineeringTransport PhenomenaCross-linking DensityFluid PropertiesPolymer NetworksTransport In PolymersTransport PropertiesWater TransportCrosslinked NetworksDiffusion CoefficientsDiffusion In Polymer NetworksEpoxy NetworksEpoxy ResinsTransport In Crosslinked PolymersTransport In Glassy PolymersTransport Through Polymer Networks
Abstract The gas and water transport properties were studied on seven epoxy–amine networks that differ by their di/mono epoxy composition and their cure cycle. The characteristic parameters of transport M ∞ and D were determined in each case, and they show that the solubility and diffusion coefficients are influenced by their composition. The solubility increases with the extend of cure and with the decrease of dangling chains, and in both cases the evolution of the diffusivity is inverse. The variations of the solubility and diffusivity have been discussed as a function of two parameters: polar groups and unrelaxed holes of the glassy networks. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 80: 2058–2066, 2001
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