作者：Liu, X.; Yu, Y. F.; Li, S. J.,
關(guān)鍵字：thermoplastics, thermoset, phase separation
論文來源：期刊
具體來源：European Polymer Journal 2006, 42, (4), 835-842.
發(fā)表時間：2006年
The polymerization-induced phase separation process of polyethersulfone (PES) modified bismaleimide resin, 4,4'-bis-maleimidodiphenylmethane (BDM), was investigated by time resolved light scattering (TRLS) and scanning electronic microscopes (SEM). At the blends with 10 wt% and 12.5 wt% PES, a phase inversion structure was found by SEM. TRLS results displayed clearly the spinodal decomposition (SD) mechanism and the exponential decay procedure of scattering vector q(m), which followed Maxwell-type relaxation equation. The characteristic relaxation time tau for the blends can be described by the Williams-Landel-Ferry equation. It demonstrated experimentally that the phase separation behaviors in these PES modified bismaleimide blends were affected by viscoelastic effect.