| graphite powder, ODA, hexane,
acetone, anhydrous toluene, methacryloyl chloride, MMA, AIBN, THF |
materials |
graphite powder, DMF, BPO,
hydroquinone, methanol, MMA |
| 1. preparation of
GO (Hummers’ method) |
stages |
1. preparation of
GO (Hummers’ method) |
| 2. reaction of methacryloyl
chloride with GO-ODA |
2. preparation of the initial monomer/GO
mixtures |
| 3. preparation of PMMA-graphene nanocomposites |
3. synthesis of PMMA/GO nanocomposites |
| reaction in a round-bottom
flask (magnetic stirrer inside); underwent two freeze–pump–thaw
cycles |
polymerization
setup |
ultrasonication
for dispersion
of GO in solution; nitrogen flow for the reaction of mixture with
initiator (polymerization in small test tubes); place into temperature
bath for preheated reaction |
| the products
were mixed in THF as a solvent and precipitated in hexane, with drying
in vacuum overnight and recovering the samples |
procedure to
retrieve the sample |
stop the polymerization
reaction with hydroquinone |
| the products were mixed
in dichloromethane as a solvent and precipitated in methanol |
