Studies on the phase separation of polyetherimide modified tetrafunctional epoxy resin. III. Morphology development of the blend during curing.
writer：Cui, J.; Yu, Y. F.; Li, S. J.
keywords：polyetherimide, epoxy resin
source：期刊
specific source：Journal of Macromolecular Science-Pure and Applied Chemistry 1998, A35, (4), 649-656.
Issue time：1998年
Using scanning electron microscope (SEM), differential scanning calorimetry (DSC) and time-resolved light scattering (TRLS) methods, the morphology development of novel polyetherimide modified tetreglycidyl-4,4'-diaminodiphenylmethane (TGDDM) epoxy resin was investigated. The phase separation took place early in the blend and morphology was fixed in the first 10 minutes of curing. Then, the diffusion of the epoxy and the polyetherimide molecules still existed till the final stage of curing.