【摘要】 采用3-氨基丙基三乙氧基硅烷偶联剂(KH550)对氧化石墨烯表面进行修饰,得到功能化氧化石墨烯(FGO),然后在引发剂偶氮二异丁腈(AIBN)作用下,以甲基丙烯酸丁酯(BMA)为单体进行原位聚合反应,得到功能化氧化石墨烯/聚甲基丙烯酸丁酯(FGO/PBMA)复合材料.通过红外光谱(FTIR)、X射线光电子能谱(XPS)、扫描电子显微镜(SEM)和热重分析(TGA)等手段对复合材料进行表征.结果表明,所制备的FGO/PBMA复合材料与聚甲基丙烯酸丁酯材料相比热稳定性显著提高,TGA结果显示,FGO/PBMA的最大失重区由PBMA的267℃升高到339℃,同时对反应机理进行了探讨.更多还原

【Abstract】 Graphene oxide( GO) nanosheets was modified by 3-triethoxysilylpropylamine( KH550) to get functional graphene oxide( FGO). Then FGO was reacted with butyl methacrylate( BMA) via in situ polymerization with the initiator AIBN in N2. The prepared functional graphene oxide /polybutylmethacrylate( FGO /PBMA) composites were characterized by Fourier transform infrared spectroscopy( FTIR),X-ray photoelectron spectrometry( XPS),scanning electron microscope( SEM) and thermal gravimetric analysis( TGA). The thermal stability of the FGO /PBMA composites were significantly enhanced compared with that of neat PBMA. The maximum mass loss temperature increased from 267 ℃ for neat PBMA to 339 ℃ for FGO /PBMA composites.Meanwhile the reaction mechanism was also discussed.更多还原