▎ 摘　　要

Two kinds of liquid crystalline monomers with different mesogenic units grafted graphene oxide (M2-g-GO and M4-g-GO) were successfully synthesised to enhance thermal and mechanical properties of nanocomposites, owing to the improvement of dispersion and interface interaction between the fillers (M2-g-GO and M4-g-GO) and the epoxy matrix (DGEBA, E-51). And the structures and comprehensive properties of M2-g-GO, M4-g-GO, and their nanocomposites were analysed using FTIR, SEM, XRD, Raman, DSC, TGA, and POM tests. Compared with the neat epoxy and 3 wt% GO/epoxy composites, thermal properties of M2-g-GO/epoxy and M4-g-GO/epoxy nanocomposites were obviously improved, meanwhile, mechanical property measures prove M2-g-GO/epoxy and M4-g-GO/epoxy nanocomposites that exhibit higher impact strength, flexural strength and modulus. For example, the T (d5%) of epoxy nanocomposites with 1, 2, 3, and 4 wt% M2-g-GO were around 385 degrees C, which was about 15 degrees C larger than that of the neat epoxy. The T (d5%) of epoxy nanocomposites with 2 and 3 wt% M4-g-GO were 383 degrees C and 388 degrees C, respectively, which was about 13 degrees C and 18 degrees C larger than that of the neat epoxy. In a word, the M2-g-GO and M4-g-GO as fillers exhibit underlying feasibility to improve thermal and mechanical properties of nanocomposites.