摘要
通过溶液共混技术成功制备了一系列聚乙二醇功能化石墨烯(GO-PEG)填充的聚乙二醇4000(PEG4000)基纳米复合材料.利用红外(FT-IR)、X衍射(XRD)、扫描电镜(SEM)、热重(TG)及玻璃化转变温度(Tg)等表征手段详细研究了复合材料的结构和热性能.结果表明:GO-PEG可均匀分散在聚合物基体中,纳米复合材料呈层状结构;组分间的较强界面相互作用协同增强了纳米复合材料的热稳定性能.最终提出了层状纳米复合材料的形成过程及机理.
PEG4000-based polymer nanocomposites filled with a series of PEG functionalized graphene （GO-PEG） have been prepared by solvent blending. The structure and properties of these nanocomposites could be studied by Fourier transform infrared spectroscopy （FT-IR）, X-ray powder diffraction （XRD）, scanning electron microscopy （SEM） and thermogravimetric analysis （TG） in detail. The results indicate that functionalized graphene is dispersed on a molecular scale and the corresponding composites show the layer-aligned structures. The thermal stability of polymer nanocomposites could be improved significantly by the strong interracial interactions between both components mainly. At last, the schematic illustration of the synthesis of layer-aligned polymer nanocomposites has been provided.
出处
《化学学报》
SCIE
CAS
CSCD
北大核心
2012年第12期1394-1400,共7页
Acta Chimica Sinica
基金
中国博士后基金(No.20100481146)
江苏省博士后基金(No.1002015C)
江苏省自然科学基金(No.BK2011712)
南京理工大学科研启动基金(No.AE88008)
南京理工大学贵重仪器设备开放基金(No.2011-01-13/25)资助项目~~
关键词
功能化石墨烯
聚乙二醇
复合材料
热稳定性
层状结构
functionalized graphene
polyethylene glycol
composites
thermal stability
layer structures
