alkyl chains were grafted onto reduced graphene oxide sheets to allow their dispersion in toluene, a common and representative nonpolar solvent as shown in the following paper:
-Dispersion of Alkyl-Chain-Functionalized Reduced Graphene Oxide Sheets in Nonpolar Solvents
Jean-Philippe Tessonnier and Mark A. Barteau
Langmuir, 28, 16, 6691–6697 (2012)
Available at: https://pubs.acs.org/doi/abs/10.1021/la2051614
I suggest you also to have a look at the following, interesting paper:
-Dispersions of partially reduced graphene oxide in various organic solvents and polymers
Hye Min Kim, Seo Gyun Kim, and Heon Sang Lee
Carbon Letters Vol. 23, 55-62 (2017)
Available at: http://web.donga.ac.kr/heonlee/%EB%85%BC%EB%AC%B8%20%EB%A7%81%ED%81%AC/Carbon%20letters%20with%20KHM.pdf
Dear all, similar question has been discussed on RG. The other documents give indirect tips to achieved the dispersability of GO in nonpolar solvents. My Regards