| abstract |
The present invention relates to a process for preparing sulfonated graphenes from organic materials and to sulfonated graphenes prepared therefrom. The process comprises the following steps: a first contacting step in which a reaction medium containing an oxidizing sulfonating agent is brought into contact with an organic macromolecular material at a first temperature; And a second contacting step of, after the first contacting step is completed, continuing the reaction in the same reaction medium, raising the reaction temperature to the second temperature to produce the sulfonated graphene. |