| abstract |
[PROBLEMS] To provide a novel ionic liquid capable of dispersing graphene in a high concentration. [MEANS FOR SOLVING PROBLEMS] An ionic liquid represented by the following general formula (1). (1) wherein R 1 and R 5 may be the same or different and each independently represents a substituted or unsubstituted C 1 -C 7 linear or branched alkyl group, R 2 is represented by the following formula, (2) wherein R 6 and R 7 may be the same or different and each independently represents a straight chain or branched alkylene group having 1 to 4 carbon atoms, m is an integer of 1 to 5, R 3 and R 4 May be the same or different and each independently represents a hydrogen atom, a substituted or unsubstituted C1 to C4 linear or branched alkyl group, X - represents a counter ion, and n represents 0 to 30). |