A facile and high yield method for the covalent functionalization of graphene through the free radical addition of a commercially available polymerization initiator, 2,2′-azobisisobutyronitrile (AIBN), has been successfully realized. The obtained material was determined to have 1 isobutyronitrile group substituent per 50 carbon atoms.
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Zhang et al. (2013) studied this question.
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