▎ 摘　　要

The p-phenylene diamine( PPD) were selected as reducion and modification agent to prepare functionalized and reduced graphene ( GOP-X) by one. step simple refluxing method. Infrared spectrum ( FTIR), X-ray photoelectron spectroscopy( XPS), X-ray diffraction( XRD) and UV-Vis absorption spectrum were used to investigate the reaction types and structure changes between PPD and graphene oxide( GO). The results show that the d. spacing of GOP-X layers increases firstly and then decreases with the increase of X( the mass ratio of PPD and GO), and the conjugated structure gradually restored; when the solvent molecular interaction, the amplification of the d. spacing decrease to a steady figure. Three types of bonds between PPD and GO were proposed: (I) hydrogen-bonding interaction between the oxygen. containing functional groups of GO and the PPD molecules( C-OH center dot center dot center dot H2N-X); (II) ionic bonding in protonating amine by the weakly acidic sites of the GO layers(-COO-H3+ N-X); (III) covalent bonding from amidation and nucleophilic addition reactions between the amie in PPD( NH2) and the oxygen containing groups of GO. Furthermore, the NH2 prefers to react first with the carboxyl group( COOH) and then with the epoxide group( C-O-C), and the relative action mechanisms were also described.