Abstract：In order to improve the lipophilic of graphite oxide and obtain stable dispersion in toluene, graphite oxide was prepared by improved Hummers method. Hydrophobic functionalized graphite oxide was prepared with different reaction conditions via solvothermal method using graphite oxide as precursor and dodecylamine (DDA) as modification reagent. The samples were characterized by X-ray diffraction (XRD), UV-Vis instrument, Fourier transform infrared spectroscopy (FT-IR)、Raman spectra and contact angle measurements. The effects of reaction conditions on the product structure and the hydrophobic effect were investigated. The results show that carboxyl groups are reacted with DDA to generate amide groups. The modified graphite oxide prepared at 120 ℃ for 3 h can be uniformly dispersed in toluene. The contact angle of the modified graphite oxide film prepared by vacuum filtration is increased from 16.9° to 101.7°.
2012, Vol. 33 
