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首页> 外文期刊>RSC Advances >Covalently functionalized graphene with D-glucose and its reinforcement to poly(vinyl alcohol) and poly(methyl methacrylate)
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Covalently functionalized graphene with D-glucose and its reinforcement to poly(vinyl alcohol) and poly(methyl methacrylate)

机译：与D-葡萄糖的共价官能化石墨烯及其增强至聚（乙烯醇）和聚（甲基丙烯酸甲酯）

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摘要

Chemically functionalized graphene has been synthesized by covalently grafting D-glucose on graphene for the first time through an esterification reaction. The D-glucose functionalized graphene was further applied in the preparation of poly(vinyl alcohol) and poly(methyl methacrylate) nanocomposites. The thermal and mechanical properties of the prepared nanocomposites were then investigated. It was demonstrated that the D-glucose was grafted on the surface of the graphene through a covalent attachment. The chemically functionalized graphene had better dispersibility in both water and dimethylformamide than the pristine graphene. The better dispersion of the functionalized graphene in both aqueous and organic solvents simplified the preparation of the polymer nanocomposites. It was found that the D-glucose grafted graphene dispersed homogeneously in both poly(vinyl alcohol) and poly(methyl methacrylate) matrices, increasing the thermal and mechanical properties of the polymers at the same time. The phenomena were ascribed to the introduction of the D-glucose, which induced strong hydrogen bonding interactions between the functionalized graphene and the polymers. The results of this study indicate that this is an effective approach for preparing well-dispersed graphene-based polymer nanocomposites by covalently attaching functional molecules on the surface of graphene.
机译：通过酯化反应首次在石墨烯中共价嫁接D-葡萄糖来合成化学官能化石墨烯。 D-葡萄糖官能化石墨烯进一步应用于聚（乙烯醇）和聚（甲基丙烯酸甲酯）纳米复合材料的制备中。然后研究制备纳米复合材料的热量和机械性能。结果证明，通过共价连接在石墨烯的表面上接枝D-葡萄糖。化学官能化石墨烯在水和二甲基甲酰胺中具有比原始石墨烯更好的分散性。官能化石墨烯在水性和有机溶剂中更好地分散，简化了聚合物纳米复合材料的制备。发现D-葡萄糖接枝石墨烯在聚（乙烯醇）和聚（甲基丙烯酸甲酯）基质中分散，同时增加聚合物的热和机械性能。该现象归因于引入D-葡萄糖，其诱导官能化石墨烯和聚合物之间的强氢键相互作用。该研究的结果表明，这是通过在石墨烯表面上共价附着官能分子制备井分散的石墨烯基聚合物纳米复合材料的有效方法。

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  • 来源
    《RSC Advances》 |2015年第21期|共8页
  • 作者

    Gan Lu; Shang Songmin; Yuen Chun Wah Marcus; Jiang Shou-xiang;

  • 作者单位

    Hong Kong Polytech Univ Inst Text &

    Clothing Hong Kong Hong Kong Peoples R China;

    Hong Kong Polytech Univ Inst Text &

    Clothing Hong Kong Hong Kong Peoples R China;

    Hong Kong Polytech Univ Inst Text &

    Clothing Hong Kong Hong Kong Peoples R China;

    Hong Kong Polytech Univ Inst Text &

    Clothing Hong Kong Hong Kong Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
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