Preparation and Dispersion of Polyacrylamide-Grafting Graphene

Li Li Wu; Xiang Lv; Chao Can Zhang

doi:10.4028/www.scientific.net/AMR.306-307.1360

Paper Titles

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Synthesis of CdTe and CdTe/CdS Core-Shell Quantum Dots and their Optical Properties
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Determination of Interdiffusion Coefficient in Nanolayered Structures by Auger Electron Spectroscopical Sputter Depth Profiling
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Preparation and Dispersion of Polyacrylamide-Grafting Graphene
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Electron Microscopy Study of Y-Shaped Carbon Fibers with Different Morphologies
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Complexional Ultrafine Zinc Oxide Powders Prepared by Controlled-Release Precipitation
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Study on Amorphization of Mechanical Alloyed Cu₅₀Zr₄₀Ag₁₀ Alloy
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 306-307Preparation and Dispersion of...

Preparation and Dispersion of Polyacrylamide-Grafting Graphene

Abstract:

Graphene has weak interface compatibility to its solvent, and it is easy to get agglomeration in the solvent. In this paper, graphehe is modified by grafting method to improve the aqueous dispersion. Oxidized graphene is firstly prepared by modified Hummer’s method and supersonic exfoliation. Then oxidized graphene is grafted by hydrophilic polymer polyacrylamide (PAM) and deoxidized into modified graphene. The product is characterized by TEM, FTIR, Raman spectroscopy and sedimentation test. And the result demonstrates a modified graphene is successfully synthesized and its compatibility to the media is enhanced as assumption. When the ratio between PAM and graphene is 1:10, the suspension absorbance is improved as twice as common graphene’s. Meanwhile the concentration of graphene in suspension can reach 0.05mg/ml without any agglomeration.