Recently graphene has attracted much attention due to its unusual molecular structure and its excellent properties. When incorporated as the component of enhancement

graphene can significantly improve the physical properties of host polymers at extremely small loading. In this review

we summarized the status of graphene and the progresses of its nanocomposites. Particularly

the reduction of graphene oxide which has been industrialized in producing the graphene

the preparation methods (solution blending

in situ polymerization and melt blending) and the properties (electrical conductivity

thermal conductivity

mechanical

thermal and gas barrier properties) of graphene /polymer nanocomposites were described. Also

challenges and future perspectives for this new class of nanocomposites have been introduced.