▎ 摘　　要

Novel poly(methyl methacrylate-co-methacrylic acid) (PMMAMA) and polyamide 6 (PA-6) blend was reinforced with graphene oxide (GO) and montmorillonite-modified GO (GO-MMT). In this way, two series of composites were prepared with varying GO and GO-MMT content. PA-6 was in situ polymerized and the effect of filler addition on molecular weight was studied using GPC. In the case of GO-MMT system, the lowering in molecular weight was more pronounced (M-n similar to 15 x 10(3) gmol(-1)). The thermal stability of PMMAMA/PA-6/GO-MMT 0.5-5 system was found higher than PMMAMA/PA-6/GO 0.5-5. PHHR of PMMAMA/PA-6/GO-MMT was decreased from 317 to 214 kW/m(2) with 0.5-5 wt% loading.