Patent ID: 9156701
Filing Date: 2015-10-13
Classification: B82Y,C01B,C09D

Abstract:
1. A functionalised graphene oxide having a basal plane fraction of carbon atoms in the sp 2 -hybridized state between 0.4 and 0.9, wherein the remainder fraction of carbon atoms which are bonded to oxygen groups selected from hydroxyl and/or epoxy and/or carboxylic acid, and wherein the surface of the graphene oxide is functionalized with one or more functional groups at a concentration greater than one functional group per 100 carbon atoms, and less than one functional group per six carbon atoms and the graphene oxide has been functionalised with a compound of the formula HO(SO 2 )(CH 2 ) n NH 2 , wherein n is 3 to 24, and the one or more functional groups are selected from the group consisting of alkyl, cycloalkyl, aryl, alkylaryl, amide, ester, ether, amine, sulphonamide, carboxylate, and phosphonate.