Abstract
Nanoscale ionic materials(NIMS) based on carbon black(CB) were prepared through a facile method. Firstly, CB was oxidized in the mixture of nitric acid and sulfuric acid, resulting in a large amounts of -COOH on surface of CB. Then oxidized CB was grafted by polyetheramine through neutralization reaction between -COOH of CB and -NH2-of polyetheramine, and CB derivatives were obtained. This surface-functionalized CB can behave as liquid at ambient temperature in the absence of solvent by carefully varying the components. FTIR and thermaogravimetric analysis confirmed that the successively grafting of polyetheramine. TEM revealed the monodisperse core-shell structure of CB derivatives particles. The viscoelasticity of CB derivatives were closely related to the molecular weight and loading of polyetheramine. The unique core-shell and ionic structure and flowability of these CB derivatives could guide our future work on obtaining NIMs with tunable and controllable properties and broaden its commercial applications.
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