We have explored graphene oxide (GO) and sulfonic acid‐functionalized graphene oxides (GOSO₃H) as efficient reinforcements to improve the performances of the polyethersulfone (PES). In contrast to GO, the numerous terminal SO₃⁻ groups in GOSO₃H nanosheets not only promoted the filler dispersion in PES matrix, but also formed strong interfacial adhesion via H‐bonding and dipole‐dipole interactions. The tensile strength of PES was enhanced by around 3‐folds and 5‐folds upon incorporation 5 wt% GO and GOSO₃H nanosheets, respectively. The improvement of tensile modulus of PES is considerably higher with GOSO₃H nanosheets compared to GO. The superior tensile properties of the PES/GOSO₃H nanocomposites could be ascribed to the better dispersion of GOSO₃H nanosheets and the efficient stress transfer between PES matrix and GOSO₃H nanosheets, which is well supported by X‐ray diffraction and morphological analyses. The loading capacity of the GOSO₃H was found be higher than that of GO. The dc conductivity of the PES/GOSO₃H nanocomposites was recorded greater than that of the GO‐reinforced nanocomposites. The thermo‐oxidative stability of the PES matrix was substantially improved upon inclusion of both the GO and GOSO₃H, but the GOSO₃H showed better effects. Overall, the as‐prepared PES/GOSO₃H hybrid nanocomposite can be used as potential material in different membrane applications.

中文翻译：

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具有改善的物理和机械性能的功能化石墨烯增强的聚醚砜纳米复合材料

我们已经探索氧化石墨烯（GO）和磺酸官能化的石墨烯氧化物（GO  SO ₃ H）作为有效的增强材料，以改善聚醚砜（PES）的性能。相反GO，众多的终端 SO ₃ ^-基团在GO  SO _3个ħ纳米片不仅促进在PES基体中的填料的分散，而且也通过氢键和偶极-偶极相互作用形成强界面粘合。PES的拉伸强度通过围绕3-倍和5倍量时增强掺入5％（重量）GO和GO  SO _3个H代表纳米片。使用GO可以大大提高PES的拉伸模量 SO ₃相比GOħ纳米片。的PES / GO的优异的拉伸性能 SO _3个ħ纳米复合材料可以归因于GO的更好的分散 SO _3个ħ纳米片和PES矩阵和GO之间的有效应力传递 SO _3个，其是公由X支持ħ纳米片，射线衍射和形态分析。对GO的载重量 SO ₃ H为发现比GO的更高。的PES / GO的直流电导率 SO ₃记录的H纳米复合材料大于GO增强的纳米复合材料。将PES基体的热氧化稳定性在包含两个GO GO和的大为改善 SO ₃ H，但GO  SO ₃ ħ显示出更好的效果。总体而言，所制备的PES / GO × SO ₃ H杂化纳米复合材料可用作不同膜应用中的潜在材料。