化学学报 ›› 2012, Vol. 70 ›› Issue (12): 1394-1400.DOI: 10.6023/A1201101 上一篇    下一篇

研究论文

聚乙二醇/功能化石墨烯层状纳米复合材料热稳定性的提高

张树鹏   

  1. 南京理工大学 软化学与功能材料教育部重点实验室,南京 210094
  • 投稿日期:2012-01-10 修回日期:2012-03-07 发布日期:2012-03-29
  • 通讯作者: 张树鹏 E-mail:shupeng_2006@126.com
  • 基金资助:

    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)及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.

Layer-aligned Polyethylene Glycol/Functionalized Graphene Composites with Improved Thermal Stability

Zhang Shupeng   

  1. Key Laboratory for soft Chemistry and Functional, Materials of Ministry of Education, Nanjing University of Science and Technology, Nanjing 210094
  • Received:2012-01-10 Revised:2012-03-07 Published:2012-03-29
  • Supported by:

    China Postdoctoral Science Foundation funded project(No. 20100481146),Jiangsu Planned Projects for Postdoctoral Research Funds (No. 1002015C), Natural Science Foundation of Jiangsu province(No. BK2011712), NJUST Research Funding(No. AE88008) and NJUST Opening Measuring Fund of Large Precious Apparatus(No. 2011-01-13/25)

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.

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

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 interfacial interactions between both components mainly. At last, the schematic illustration of the synthesis of layer-aligned polymer nanocomposites has been provided.

Key words: functionalized graphene, polyethylene glycol, composites, thermal stability, layer structures