Robust graphene dispersion with amphiphlic perylene-polyglycidol

• Graphene dispersions with perylene-cored amphiphlic hyperbranched polyglycidol.
• Intercalating of polyglycidol into multilayer graphene structures.
• Stable dispersion properties in both water and DMF even for over 2 months.

Novel amphiphilic perylene-polyglycidol was successfully prepared for graphene dispersion. The intercalating of polyglycidol into graphene multilayers was achieved via π–π interactions between perylene core and multilayer graphene structure. The hybrid composite exhibits stable dispersion properties in both water and DMF even for over 2 months.