| 초록 |
Epoxy is one of the most widely used thermoset resins due to its excellent engineering properties. However, epoxies are brittle and have low impact strength. To solve this problem, Thiol-terminated PEG-functionalized POSS with high strength was introduced to make epoxy nanocomposites. Polyhedral oligomeric silsesquioxanes (POSS), with a cubic cage shaped nanostructure and a multiplicity of functional groups, have been widely applied in organic-inorganic hybrid materials due to their high mechanical strengths. In this study, POSS-PEG-SH was consisting of three steps. Hybrid epoxy nanocomposites were prepared by using Diglycidyl ether bisphenol A (DGEBA) and Diaminodiphenyl sulfone (DDS) to form a hybrid epoxy polymer according to different molecular weight of PEG(Mw= 360, 500Da). Physical properties of the hybrid epoxy nanocomposites were characterized with FT-IR, H-NMR and UTM. |
