| 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 |
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| 引用本文： | 张树鹏.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[J].化学学报,2012,70(12):74-80. |
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| 作者姓名： | 张树鹏 |
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| 作者单位： | 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 |
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| 基金项目： | 中国博士后基金，江苏省博士后基金，江苏省自然科学基金，南京理工大学科研肩动基金，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.致谢衷心感谢汪信教授、武晓东副教授对本研究的支持与帮助! |
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| 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.
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| 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 |
Layer-aligned Polyethylene Glycol/Functionalized Graphene Composites with Improved Thermal Stability |
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| Institution: | Zhang,Shupeng(Key Laboratory for Soft Chemistry and Functional Materials of Ministry of Education,Nanjing University of Science and Technology,Nanjing 210094) |
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| Abstract: | 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. |
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| Keywords: | functionalized graphene polyethylene glycol composites thermal stability layer structures |
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