合成和AFM结构成像的树枝状星状分支聚烯的合成和AFM结构成像
Alain Deffieux1, Michel Schappacher, Akira Hirao
1CNRS, Université Bordeaux 1, Laboratoire de Chimie des Polymères Organiques, UMR 5629, 16, Avenue Pey Berland, 33607 Pessac Cedex, France. deffieux@enscpb.fr
Journal of the American Chemical Society
|April 9, 2008
概括
我们为AFM成像合成了第三代树枝状星分枝聚烯. 这些聚合物可视化为平坦的,方形的物体,揭示其结构内的内部分支点.
科学领域:
- 聚合物化学 聚合物化学
- 材料科学 材料科学 材料科学
- 纳米技术 纳米技术
背景情况:
- 类似登德里默的星分支聚合物为先进的应用提供了独特的架构.
- 想象复杂聚合物的内部结构对于理解其性质至关重要.
研究的目的:
- 合成和表征第3代树枝状星分枝聚烯.
- 为了使用原子力显微镜 (AFM) 实现这些聚合物的可视化.
主要方法:
- 代式,顺序的三阶段合成方法.
- 原子力显微镜 (AFM) 用于聚合物成像和结构分析.
主要成果:
- 成功合成了大型,密集分支的第3代聚烯.
- 飞机机械成像显示了平坦的,方形的聚合物结构 (约. 250纳米直径,<1纳米高度).
- 内部结构分析显示,聚合物矩阵内有四个相互连接的叶片和定期分布的分支点.
结论:
- 开发的合成策略允许精确控制聚合物架构.
- AFM对于可视化这些复杂聚合物的纳米结构是有效的.
- 观察到的形态和内部结构与使用的四功能核心前体相关.
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